FileSpec.cpp revision d6d806ceff943ca26c008f704013f18920685cfd
124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//===-- FileSpec.cpp --------------------------------------------*- C++ -*-===// 224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The LLVM Compiler Infrastructure 424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// This file is distributed under the University of Illinois Open Source 624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// License. See LICENSE.TXT for details. 724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//===----------------------------------------------------------------------===// 924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <fcntl.h> 1224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <libgen.h> 1324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <stdlib.h> 1424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <sys/param.h> 1524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <sys/stat.h> 1624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <sys/types.h> 17a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham#include <pwd.h> 1824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <fstream> 2024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 21e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice#include "llvm/ADT/StringRef.h" 22e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice#include "llvm/System/Path.h" 23e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice#include "llvm/System/Program.h" 24e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice 2524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/FileSpec.h" 2624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/DataBufferHeap.h" 2724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/DataBufferMemoryMap.h" 2824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/Stream.h" 29eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice#include "lldb/Host/Host.h" 3024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 3124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerusing namespace lldb; 3224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerusing namespace lldb_private; 3324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerusing namespace std; 3424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 3524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic bool 3624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerGetFileStats (const FileSpec *file_spec, struct stat *stats_ptr) 3724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 3824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 3924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (file_spec->GetPath(&resolved_path[0], sizeof(resolved_path))) 4024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ::stat (resolved_path, stats_ptr) == 0; 4124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 4224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 4324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 4424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic const char* 4524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerGetCachedGlobTildeSlash() 4624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 4724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner static std::string g_tilde; 4824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (g_tilde.empty()) 4924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 50a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham struct passwd *user_entry; 51a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham user_entry = getpwuid(geteuid()); 52a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (user_entry != NULL) 53a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham g_tilde = user_entry->pw_dir; 54a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 5524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (g_tilde.empty()) 5624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return NULL; 5724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 5824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return g_tilde.c_str(); 5924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 6024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 61a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham// Resolves the username part of a path of the form ~user/other/directories, and 62a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham// writes the result into dst_path. 63a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham// Returns 0 if there WAS a ~ in the path but the username couldn't be resolved. 64a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham// Otherwise returns the number of characters copied into dst_path. If the return 65a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham// is >= dst_len, then the resolved path is too long... 6654e7afa84d945f9137f9372ecde432f9e1a702fcGreg Claytonsize_t 67a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim InghamFileSpec::ResolveUsername (const char *src_path, char *dst_path, size_t dst_len) 68a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham{ 69a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham char user_home[PATH_MAX]; 70a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham const char *user_name; 71a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 72a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (src_path == NULL || src_path[0] == '\0') 73a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham return 0; 74b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton 75a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham // If there's no ~, then just copy src_path straight to dst_path (they may be the same string...) 76a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (src_path[0] != '~') 77a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 7854e7afa84d945f9137f9372ecde432f9e1a702fcGreg Clayton size_t len = strlen (src_path); 79a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (len >= dst_len) 80a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 81b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton ::bcopy (src_path, dst_path, dst_len - 1); 82b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton dst_path[dst_len] = '\0'; 83a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 84a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham else 85b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton ::bcopy (src_path, dst_path, len + 1); 86b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton 87a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham return len; 88a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 89a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 909c3cfe397d6040a46677e201c2682cc2a5163fe9Eli Friedman const char *first_slash = ::strchr (src_path, '/'); 91a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham char remainder[PATH_MAX]; 92a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 93a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (first_slash == NULL) 94a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 95a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham // The whole name is the username (minus the ~): 96a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham user_name = src_path + 1; 97a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham remainder[0] = '\0'; 98a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 99a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham else 100a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 101a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham int user_name_len = first_slash - src_path - 1; 102b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton ::memcpy (user_home, src_path + 1, user_name_len); 103a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham user_home[user_name_len] = '\0'; 104a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham user_name = user_home; 105a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 106b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton ::strcpy (remainder, first_slash); 107a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 108b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton 109a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (user_name == NULL) 110a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham return 0; 111a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham // User name of "" means the current user... 112a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 113a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham struct passwd *user_entry; 11454e7afa84d945f9137f9372ecde432f9e1a702fcGreg Clayton const char *home_dir = NULL; 115a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 116a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (user_name[0] == '\0') 117a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 118a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham home_dir = GetCachedGlobTildeSlash(); 119a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 120a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham else 121a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 122b1a9862ba1ceb219b6042ff3f8c6ff591867ae26Greg Clayton user_entry = ::getpwnam (user_name); 123a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (user_entry != NULL) 124a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham home_dir = user_entry->pw_dir; 125a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 126a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 127a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (home_dir == NULL) 128a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham return 0; 129a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham else 130a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham return ::snprintf (dst_path, dst_len, "%s%s", home_dir, remainder); 131a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham} 132a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 13354e7afa84d945f9137f9372ecde432f9e1a702fcGreg Claytonsize_t 13424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Resolve (const char *src_path, char *dst_path, size_t dst_len) 13524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 13624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (src_path == NULL || src_path[0] == '\0') 13724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return 0; 13824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 13924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Glob if needed for ~/, otherwise copy in case src_path is same as dst_path... 14024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char unglobbed_path[PATH_MAX]; 141a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (src_path[0] == '~') 142a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham { 14354e7afa84d945f9137f9372ecde432f9e1a702fcGreg Clayton size_t return_count = ResolveUsername(src_path, unglobbed_path, sizeof(unglobbed_path)); 144a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham 145a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham // If we couldn't find the user referred to, or the resultant path was too long, 146a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham // then just copy over the src_path. 147a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham if (return_count == 0 || return_count >= sizeof(unglobbed_path)) 148a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham ::snprintf (unglobbed_path, sizeof(unglobbed_path), "%s", src_path); 149a30baf5b257c7a62c5888679e7c1ac8eb47ca6d7Jim Ingham } 15024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 15124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ::snprintf(unglobbed_path, sizeof(unglobbed_path), "%s", src_path); 15224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 15324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Now resolve the path if needed 15424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 15524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (::realpath (unglobbed_path, resolved_path)) 15624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 15724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Success, copy the resolved path 15824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ::snprintf(dst_path, dst_len, "%s", resolved_path); 15924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 16024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 16124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 16224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Failed, just copy the unglobbed path 16324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ::snprintf(dst_path, dst_len, "%s", unglobbed_path); 16424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 16524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 16624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 16724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileSpec() : 16824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory(), 16924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename() 17024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 17124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 17224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 17324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 17424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Default constructor that can take an optional full path to a 17524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// file on disk. 17624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 177c4547c59f2e8390bdbf92484c851be06395b8e77Jim InghamFileSpec::FileSpec(const char *pathname, bool resolve_path) : 178c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham m_directory(), 179d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_filename(), 180d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved(false) 181c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham{ 182c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (pathname && pathname[0]) 183c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham SetFile(pathname, resolve_path); 184c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham} 185c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 186c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham//------------------------------------------------------------------ 18724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Copy constructor 18824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 18924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileSpec(const FileSpec& rhs) : 19024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory (rhs.m_directory), 191d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_filename (rhs.m_filename), 192d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved (rhs.m_is_resolved) 19324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 19424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 19524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 19624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 19724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Copy constructor 19824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 19924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileSpec(const FileSpec* rhs) : 20024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory(), 20124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename() 20224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 20324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (rhs) 20424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *this = *rhs; 20524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 20624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 20724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 20824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Virtual destrcuctor in case anyone inherits from this class. 20924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 21024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::~FileSpec() 21124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 21224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 21324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 21424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 21524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Assignment operator. 21624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 21724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst FileSpec& 21824943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator= (const FileSpec& rhs) 21924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 22024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (this != &rhs) 22124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 22224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory = rhs.m_directory; 22324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename = rhs.m_filename; 224d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved = rhs.m_is_resolved; 22524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 22624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return *this; 22724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 22824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 22924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 23024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Update the contents of this object with a new path. The path will 23124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// be split up into a directory and filename and stored as uniqued 23224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// string values for quick comparison and efficient memory usage. 23324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 23424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 235d6d806ceff943ca26c008f704013f18920685cfdGreg ClaytonFileSpec::SetFile (const char *pathname, bool resolve) 23624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 23724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Clear(); 23824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Clear(); 239d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved = false; 24024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (pathname == NULL || pathname[0] == '\0') 24124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return; 24224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 24324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 244c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham bool path_fit = true; 245c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 246c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (resolve) 247c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham { 248c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham path_fit = (FileSpec::Resolve (pathname, resolved_path, sizeof(resolved_path)) < sizeof(resolved_path) - 1); 249d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved = path_fit; 250c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham } 251c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham else 252c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham { 253d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // Copy the path because "basename" and "dirname" want to muck with the 254d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // path buffer 255d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (::strlen (pathname) > sizeof(resolved_path) - 1) 256c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham path_fit = false; 257c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham else 258d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton ::strcpy (resolved_path, pathname); 259c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham } 26024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 261c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 262c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (path_fit) 26324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 26424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *filename = ::basename (resolved_path); 26524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (filename) 26624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 26724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.SetCString (filename); 26824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Truncate the basename off the end of the resolved path 26924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 27024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Only attempt to get the dirname if it looks like we have a path 27124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (strchr(resolved_path, '/')) 27224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 27324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *directory = ::dirname (resolved_path); 27424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 27524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Make sure we didn't get our directory resolved to "." without having 27624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // specified 27724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (directory) 27824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(directory); 27924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 28024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 28124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *last_resolved_path_slash = strrchr(resolved_path, '/'); 28224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (last_resolved_path_slash) 28324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 28424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *last_resolved_path_slash = '\0'; 28524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(resolved_path); 28624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 29024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 29124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(resolved_path); 29224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 29324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 29424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 29524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 29624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Convert to pointer operator. This allows code to check any FileSpec 29724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// objects to see if they contain anything valid using code such as: 29824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 29924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (file_spec) 30024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// {} 30124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 30224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator 30324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid*() const 30424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 30524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return (m_directory || m_filename) ? const_cast<FileSpec*>(this) : NULL; 30624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 30724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 30824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 30924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Logical NOT operator. This allows code to check any FileSpec 31024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// objects to see if they are invalid using code such as: 31124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 31224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (!file_spec) 31324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// {} 31424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 31524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 31624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator!() const 31724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 31824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return !m_directory && !m_filename; 31924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 32024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 32124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 32224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Equal to operator 32324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 32424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 32524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator== (const FileSpec& rhs) const 32624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 327d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (m_filename == rhs.m_filename) 328d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 329d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (m_directory == rhs.m_directory) 330d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return true; 331d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 332d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // TODO: determine if we want to keep this code in here. 333d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // The code below was added to handle a case where we were 334d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // trying to set a file and line breakpoint and one path 335d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // was resolved, and the other not and the directory was 336d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // in a mount point that resolved to a more complete path: 337d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // "/tmp/a.c" == "/private/tmp/a.c". I might end up pulling 338d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // this out... 339d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (IsResolved() && rhs.IsResolved()) 340d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 341d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // Both paths are resolved, no need to look further... 342d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return false; 343d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 344d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 345d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton FileSpec resolved_lhs(*this); 346d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 347d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // If "this" isn't resolved, resolve it 348d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (!IsResolved()) 349d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 350d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (resolved_lhs.ResolvePath()) 351d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 352d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // This path wasn't resolved but now it is. Check if the resolved 353d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // directory is the same as our unresolved directory, and if so, 354d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // we can mark this object as resolved to avoid more future resolves 355d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton m_is_resolved = (m_directory == resolved_lhs.m_directory); 356d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 357d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton else 358d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return false; 359d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 360d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 361d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton FileSpec resolved_rhs(rhs); 362d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (!rhs.IsResolved()) 363d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 364d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (resolved_rhs.ResolvePath()) 365d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton { 366d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // rhs's path wasn't resolved but now it is. Check if the resolved 367d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // directory is the same as rhs's unresolved directory, and if so, 368d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // we can mark this object as resolved to avoid more future resolves 369d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton rhs.m_is_resolved = (m_directory == resolved_rhs.m_directory); 370d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 371d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton else 372d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return false; 373d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 374d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 375d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // If we reach this point in the code we were able to resolve both paths 376d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // and since we only resolve the paths if the basenames are equal, then 377d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // we can just check if both directories are equal... 378d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return resolved_lhs.GetDirectory() == resolved_rhs.GetDirectory(); 379d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton } 380d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return false; 38124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 38224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 38324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 38424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Not equal to operator 38524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 38624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 38724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator!= (const FileSpec& rhs) const 38824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 389d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return !(*this == rhs); 39024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 39124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 39224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 39324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Less than operator 39424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 39524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 39624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator< (const FileSpec& rhs) const 39724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 39824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return FileSpec::Compare(*this, rhs, true) < 0; 39924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 40024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 40224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Dump a FileSpec object to a stream 40324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 40424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerStream& 40524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerlldb_private::operator << (Stream &s, const FileSpec& f) 40624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 40724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner f.Dump(&s); 40824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return s; 40924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 41024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 41124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 41224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Clear this object by releasing both the directory and filename 41324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// string values and making them both the empty string. 41424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 41524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 41624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Clear() 41724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 41824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Clear(); 41924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Clear(); 42024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 42124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 42224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 42324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Compare two FileSpec objects. If "full" is true, then both 42424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// the directory and the filename must match. If "full" is false, 42524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// then the directory names for "a" and "b" are only compared if 42624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// they are both non-empty. This allows a FileSpec object to only 42724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// contain a filename and it can match FileSpec objects that have 42824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// matching filenames with different paths. 42924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 43024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Return -1 if the "a" is less than "b", 0 if "a" is equal to "b" 43124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// and "1" if "a" is greater than "b". 43224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 43324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerint 43424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Compare(const FileSpec& a, const FileSpec& b, bool full) 43524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 43624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int result = 0; 43724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 43824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If full is true, then we must compare both the directory and filename. 43924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 44024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If full is false, then if either directory is empty, then we match on 44124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the basename only, and if both directories have valid values, we still 44224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // do a full compare. This allows for matching when we just have a filename 44324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // in one of the FileSpec objects. 44424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 44524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (full || (a.m_directory && b.m_directory)) 44624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 44724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner result = ConstString::Compare(a.m_directory, b.m_directory); 44824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (result) 44924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return result; 45024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 45124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ConstString::Compare (a.m_filename, b.m_filename); 45224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 45324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 45424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 45524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Equal (const FileSpec& a, const FileSpec& b, bool full) 45624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 45724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (full) 45824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return a == b; 45924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 46024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return a.m_filename == b.m_filename; 46124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 46224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 46324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 46424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 46524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 46624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Dump the object to the supplied stream. If the object contains 46724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// a valid directory name, it will be displayed followed by a 46824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// directory delimiter, and the filename. 46924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 47024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 47124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Dump(Stream *s) const 47224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 47324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (m_filename) 47424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Dump(s, ""); // Provide a default for m_directory when we dump it in case it is invalid 47524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 47624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (m_directory) 47724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 47824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If dirname was valid, then we need to print a slash between 47924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the directory and the filename 48024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner s->PutChar('/'); 48124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 48224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Dump(s); 48324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 48424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 48524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 48624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns true if the file exists. 48724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 48824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 48924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Exists () const 49024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 49124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 49224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return GetFileStats (this, &file_stats); 493eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice} 494eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice 495eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Ticebool 496eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline TiceFileSpec::ResolveExecutableLocation () 497eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice{ 498537a7a86687683fd403ce652d178fbc89e06ef9fGreg Clayton if (!m_directory) 499e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 500e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice const std::string file_str (m_filename.AsCString()); 501e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice llvm::sys::Path path = llvm::sys::Program::FindProgramByName (file_str); 502e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice llvm::StringRef dir_ref = path.getDirname(); 503e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (! dir_ref.empty()) 504e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 505e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // FindProgramByName returns "." if it can't find the file. 506e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (strcmp (".", dir_ref.data()) == 0) 507e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return false; 508e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice 509e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice m_directory.SetCString (dir_ref.data()); 510e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (Exists()) 511e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return true; 512e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice else 513e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 514e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // If FindProgramByName found the file, it returns the directory + filename in its return results. 515e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // We need to separate them. 516537a7a86687683fd403ce652d178fbc89e06ef9fGreg Clayton FileSpec tmp_file (dir_ref.data(), false); 517e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (tmp_file.Exists()) 518e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 519e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice m_directory = tmp_file.m_directory; 520e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return true; 521e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 522e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 523e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 524e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 525e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice 526e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return false; 527c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham} 528c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 529c4547c59f2e8390bdbf92484c851be06395b8e77Jim Inghambool 530c4547c59f2e8390bdbf92484c851be06395b8e77Jim InghamFileSpec::ResolvePath () 531c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham{ 532d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton if (m_is_resolved) 533d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return true; // We have already resolved this path 534d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton 535d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton char path_buf[PATH_MAX]; 536c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (!GetPath (path_buf, PATH_MAX)) 537c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham return false; 538d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton // SetFile(...) will set m_is_resolved correctly if it can resolve the path 539c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham SetFile (path_buf, true); 540d6d806ceff943ca26c008f704013f18920685cfdGreg Clayton return m_is_resolved; 54124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 54224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 54324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattneruint64_t 54424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetByteSize() const 54524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 54624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 54724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 54824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return file_stats.st_size; 54924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return 0; 55024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 55124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 55224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileType 55324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFileType () const 55424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 55524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 55624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 55724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 55824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner mode_t file_type = file_stats.st_mode & S_IFMT; 55924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (file_type) 56024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 56124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFDIR: return eFileTypeDirectory; 56224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFIFO: return eFileTypePipe; 56324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFREG: return eFileTypeRegular; 56424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFSOCK: return eFileTypeSocket; 56524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFLNK: return eFileTypeSymbolicLink; 56624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 56724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 56824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 56924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return eFileTypeUknown; 57024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 57124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return eFileTypeInvalid; 57224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 57324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 57424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerTimeValue 57524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetModificationTime () const 57624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 57724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner TimeValue mod_time; 57824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 57924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 580b586901fb633b898e19bdfc8d605b4e89a3ab5b8Eli Friedman mod_time.OffsetWithSeconds(file_stats.st_mtime); 58124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return mod_time; 58224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 58324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 58424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 58524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Directory string get accessor. 58624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 58724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerConstString & 58824943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetDirectory() 58924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 59024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_directory; 59124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 59224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 59324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 59424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Directory string const get accessor. 59524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 59624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst ConstString & 59724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetDirectory() const 59824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 59924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_directory; 60024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 60124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 60224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 60324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Filename string get accessor. 60424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 60524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerConstString & 60624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFilename() 60724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 60824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename; 60924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 61024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 61124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 61224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Filename string const get accessor. 61324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 61424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst ConstString & 61524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFilename() const 61624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 61724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename; 61824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 61924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 62024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 62124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Extract the directory and path into a fixed buffer. This is 62224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// needed as the directory and path are stored in separate string 62324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// values. 62424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 62549ce682dfa7993d31206cea19ce7006cd3f3077eGreg Claytonsize_t 62649ce682dfa7993d31206cea19ce7006cd3f3077eGreg ClaytonFileSpec::GetPath(char *path, size_t path_max_len) const 62724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 62849ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton if (path_max_len) 62924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 63049ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton const char *dirname = m_directory.GetCString(); 63149ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton const char *filename = m_filename.GetCString(); 63224b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (dirname) 63324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 63424b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (filename) 63549ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton return ::snprintf (path, path_max_len, "%s/%s", dirname, filename); 63624b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton else 63749ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton return ::snprintf (path, path_max_len, "%s", dirname); 63824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 63924b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton else if (filename) 64024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 64149ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton return ::snprintf (path, path_max_len, "%s", filename); 64224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 64324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 64424b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton path[0] = '\0'; 64549ce682dfa7993d31206cea19ce7006cd3f3077eGreg Clayton return 0; 64624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 64724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 64824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 64924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns a shared pointer to a data buffer that contains all or 65024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// part of the contents of a file. The data is memory mapped and 65124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// will lazily page in data from the file as memory is accessed. 65224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The data that is mappped will start "file_offset" bytes into the 65324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// file, and "file_size" bytes will be mapped. If "file_size" is 65424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// greater than the number of bytes available in the file starting 65524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// at "file_offset", the number of bytes will be appropriately 65624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// truncated. The final number of bytes that get mapped can be 65724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// verified using the DataBuffer::GetByteSize() function. 65824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 65924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDataBufferSP 66024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::MemoryMapFileContents(off_t file_offset, size_t file_size) const 66124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 66224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DataBufferSP data_sp; 66324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner auto_ptr<DataBufferMemoryMap> mmap_data(new DataBufferMemoryMap()); 66424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (mmap_data.get()) 66524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 66624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (mmap_data->MemoryMapFromFileSpec (this, file_offset, file_size) >= file_size) 66724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_sp.reset(mmap_data.release()); 66824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 66924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return data_sp; 67024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 67124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 67224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 67324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 67424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Return the size in bytes that this object takes in memory. This 67524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// returns the size in bytes of this object, not any shared string 67624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// values it may refer to. 67724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 67824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnersize_t 67924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::MemorySize() const 68024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 68124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename.MemorySize() + m_directory.MemorySize(); 68224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 68324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 684704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 685704363531ee4877ccc6d35d0702876096f54c67bGreg Claytonsize_t 686704363531ee4877ccc6d35d0702876096f54c67bGreg ClaytonFileSpec::ReadFileContents (off_t file_offset, void *dst, size_t dst_len) const 687704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton{ 688704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton size_t bytes_read = 0; 689704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton char resolved_path[PATH_MAX]; 690704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (GetPath(resolved_path, sizeof(resolved_path))) 691704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 692704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton int fd = ::open (resolved_path, O_RDONLY, 0); 693704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (fd != -1) 694704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 695704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton struct stat file_stats; 696704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (::fstat (fd, &file_stats) == 0) 697704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 698704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton // Read bytes directly into our basic_string buffer 699704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (file_stats.st_size > 0) 700704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 701704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton off_t lseek_result = 0; 702704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (file_offset > 0) 703704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton lseek_result = ::lseek (fd, file_offset, SEEK_SET); 704704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 705704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (lseek_result == file_offset) 706704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 707704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton ssize_t n = ::read (fd, dst, dst_len); 708704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (n >= 0) 709704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton bytes_read = n; 710704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 711704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 712704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 713704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 714704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton close(fd); 715704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 716704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton return bytes_read; 717704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton} 718704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 71924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 72024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns a shared pointer to a data buffer that contains all or 72124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// part of the contents of a file. The data copies into a heap based 72224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buffer that lives in the DataBuffer shared pointer object returned. 72324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The data that is cached will start "file_offset" bytes into the 72424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// file, and "file_size" bytes will be mapped. If "file_size" is 72524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// greater than the number of bytes available in the file starting 72624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// at "file_offset", the number of bytes will be appropriately 72724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// truncated. The final number of bytes that get mapped can be 72824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// verified using the DataBuffer::GetByteSize() function. 72924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 73024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDataBufferSP 731704363531ee4877ccc6d35d0702876096f54c67bGreg ClaytonFileSpec::ReadFileContents (off_t file_offset, size_t file_size) const 73224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 73324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DataBufferSP data_sp; 73424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 73524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetPath(resolved_path, sizeof(resolved_path))) 73624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 73724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int fd = ::open (resolved_path, O_RDONLY, 0); 73824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (fd != -1) 73924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 74024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 74124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (::fstat (fd, &file_stats) == 0) 74224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 74324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (file_stats.st_size > 0) 74424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 74524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner off_t lseek_result = 0; 74624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (file_offset > 0) 74724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner lseek_result = ::lseek (fd, file_offset, SEEK_SET); 74824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 74924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (lseek_result < 0) 75024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 75124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Get error from errno 75224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 75324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (lseek_result == file_offset) 75424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 755704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton const size_t bytes_left = file_stats.st_size - file_offset; 756704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton size_t num_bytes_to_read = file_size; 757704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (num_bytes_to_read > bytes_left) 758704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton num_bytes_to_read = bytes_left; 759704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 76024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner std::auto_ptr<DataBufferHeap> data_heap_ap; 761704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton data_heap_ap.reset(new DataBufferHeap(num_bytes_to_read, '\0')); 76224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 76324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (data_heap_ap.get()) 76424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 76524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ssize_t bytesRead = ::read (fd, (void *)data_heap_ap->GetBytes(), data_heap_ap->GetByteSize()); 76624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (bytesRead >= 0) 76724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 76824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Make sure we read exactly what we asked for and if we got 76924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // less, adjust the array 77054e7afa84d945f9137f9372ecde432f9e1a702fcGreg Clayton if ((size_t)bytesRead < data_heap_ap->GetByteSize()) 77124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_heap_ap->SetByteSize(bytesRead); 77224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_sp.reset(data_heap_ap.release()); 77324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 77924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner close(fd); 78024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 78124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return data_sp; 78224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 78324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 7843d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Claytonsize_t 78524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::ReadFileLines (STLStringArray &lines) 78624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 78724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner lines.clear(); 7883d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton char path[PATH_MAX]; 7893d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton if (GetPath(path, sizeof(path))) 79024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 7913d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton ifstream file_stream (path); 79224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 7933d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton if (file_stream) 7943d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton { 7953d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton std::string line; 7963d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton while (getline (file_stream, line)) 7973d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton lines.push_back (line); 7983d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton } 7993d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton } 8003d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton return lines.size(); 80124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 802