FileSpec.cpp revision 3d0e2c2de1b965b6dc171a618ddb8144419ae6f5
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(), 179c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham m_filename() 180c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham{ 181c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (pathname && pathname[0]) 182c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham SetFile(pathname, resolve_path); 183c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham} 184c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 185c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham//------------------------------------------------------------------ 18624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Copy constructor 18724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 18824943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileSpec(const FileSpec& rhs) : 18924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory (rhs.m_directory), 19024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename (rhs.m_filename) 19124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 19224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 19324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 19424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 19524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Copy constructor 19624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 19724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileSpec(const FileSpec* rhs) : 19824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory(), 19924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename() 20024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 20124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (rhs) 20224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *this = *rhs; 20324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 20424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 20524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 20624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Virtual destrcuctor in case anyone inherits from this class. 20724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 20824943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::~FileSpec() 20924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 21024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 21124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 21224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 21324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Assignment operator. 21424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 21524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst FileSpec& 21624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator= (const FileSpec& rhs) 21724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 21824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (this != &rhs) 21924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 22024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory = rhs.m_directory; 22124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename = rhs.m_filename; 22224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 22324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return *this; 22424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 22524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 22624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 22724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Update the contents of this object with a new path. The path will 22824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// be split up into a directory and filename and stored as uniqued 22924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// string values for quick comparison and efficient memory usage. 23024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 23124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 232c4547c59f2e8390bdbf92484c851be06395b8e77Jim InghamFileSpec::SetFile(const char *pathname, bool resolve) 23324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 23424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Clear(); 23524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Clear(); 23624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (pathname == NULL || pathname[0] == '\0') 23724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return; 23824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 23924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 240c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham bool path_fit = true; 241c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 242c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (resolve) 243c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham { 244c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham path_fit = (FileSpec::Resolve (pathname, resolved_path, sizeof(resolved_path)) < sizeof(resolved_path) - 1); 245c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham } 246c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham else 247c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham { 248c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (strlen (pathname) > sizeof(resolved_path) - 1) 249c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham path_fit = false; 250c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham else 251c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham strcpy (resolved_path, pathname); 252c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham } 25324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 254c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 255c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (path_fit) 25624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 25724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *filename = ::basename (resolved_path); 25824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (filename) 25924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 26024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.SetCString (filename); 26124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Truncate the basename off the end of the resolved path 26224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 26324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Only attempt to get the dirname if it looks like we have a path 26424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (strchr(resolved_path, '/')) 26524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 26624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *directory = ::dirname (resolved_path); 26724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 26824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Make sure we didn't get our directory resolved to "." without having 26924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // specified 27024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (directory) 27124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(directory); 27224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 27324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 27424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char *last_resolved_path_slash = strrchr(resolved_path, '/'); 27524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (last_resolved_path_slash) 27624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 27724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *last_resolved_path_slash = '\0'; 27824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(resolved_path); 27924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 28424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.SetCString(resolved_path); 28524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 28724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 28824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 28924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Convert to pointer operator. This allows code to check any FileSpec 29024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// objects to see if they contain anything valid using code such as: 29124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 29224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (file_spec) 29324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// {} 29424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 29524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator 29624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid*() const 29724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 29824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return (m_directory || m_filename) ? const_cast<FileSpec*>(this) : NULL; 29924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 30024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 30124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 30224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Logical NOT operator. This allows code to check any FileSpec 30324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// objects to see if they are invalid using code such as: 30424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 30524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (!file_spec) 30624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// {} 30724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 30824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 30924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator!() const 31024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 31124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return !m_directory && !m_filename; 31224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 31324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 31424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 31524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Equal to operator 31624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 31724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 31824943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator== (const FileSpec& rhs) const 31924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 32024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_directory == rhs.m_directory && m_filename == rhs.m_filename; 32124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 32224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 32324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 32424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Not equal to operator 32524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 32624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 32724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator!= (const FileSpec& rhs) const 32824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 32924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename != rhs.m_filename || m_directory != rhs.m_directory; 33024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 33124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 33224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 33324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Less than operator 33424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 33524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 33624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::operator< (const FileSpec& rhs) const 33724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 33824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return FileSpec::Compare(*this, rhs, true) < 0; 33924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 34024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 34124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 34224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Dump a FileSpec object to a stream 34324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 34424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerStream& 34524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerlldb_private::operator << (Stream &s, const FileSpec& f) 34624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 34724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner f.Dump(&s); 34824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return s; 34924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 35024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 35124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 35224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Clear this object by releasing both the directory and filename 35324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// string values and making them both the empty string. 35424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 35524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 35624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Clear() 35724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 35824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Clear(); 35924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Clear(); 36024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 36124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 36224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 36324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Compare two FileSpec objects. If "full" is true, then both 36424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// the directory and the filename must match. If "full" is false, 36524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// then the directory names for "a" and "b" are only compared if 36624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// they are both non-empty. This allows a FileSpec object to only 36724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// contain a filename and it can match FileSpec objects that have 36824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// matching filenames with different paths. 36924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 37024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Return -1 if the "a" is less than "b", 0 if "a" is equal to "b" 37124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// and "1" if "a" is greater than "b". 37224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 37324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerint 37424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Compare(const FileSpec& a, const FileSpec& b, bool full) 37524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 37624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int result = 0; 37724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 37824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If full is true, then we must compare both the directory and filename. 37924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 38024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If full is false, then if either directory is empty, then we match on 38124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the basename only, and if both directories have valid values, we still 38224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // do a full compare. This allows for matching when we just have a filename 38324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // in one of the FileSpec objects. 38424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 38524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (full || (a.m_directory && b.m_directory)) 38624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 38724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner result = ConstString::Compare(a.m_directory, b.m_directory); 38824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (result) 38924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return result; 39024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 39124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ConstString::Compare (a.m_filename, b.m_filename); 39224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 39324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 39424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 39524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Equal (const FileSpec& a, const FileSpec& b, bool full) 39624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 39724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (full) 39824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return a == b; 39924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 40024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return a.m_filename == b.m_filename; 40124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 40224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 40624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Dump the object to the supplied stream. If the object contains 40724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// a valid directory name, it will be displayed followed by a 40824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// directory delimiter, and the filename. 40924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 41024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 41124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Dump(Stream *s) const 41224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 41324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (m_filename) 41424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_directory.Dump(s, ""); // Provide a default for m_directory when we dump it in case it is invalid 41524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 41624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (m_directory) 41724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 41824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If dirname was valid, then we need to print a slash between 41924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the directory and the filename 42024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner s->PutChar('/'); 42124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 42224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_filename.Dump(s); 42324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 42424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 42524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 42624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns true if the file exists. 42724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 42824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 42924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::Exists () const 43024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 43124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 43224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return GetFileStats (this, &file_stats); 433eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice} 434eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice 435eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Ticebool 436eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline TiceFileSpec::ResolveExecutableLocation () 437eddffe93d2c9ebb575e7b03fe1c5e71f9ecaf9f1Caroline Tice{ 438537a7a86687683fd403ce652d178fbc89e06ef9fGreg Clayton if (!m_directory) 439e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 440e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice const std::string file_str (m_filename.AsCString()); 441e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice llvm::sys::Path path = llvm::sys::Program::FindProgramByName (file_str); 442e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice llvm::StringRef dir_ref = path.getDirname(); 443e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (! dir_ref.empty()) 444e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 445e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // FindProgramByName returns "." if it can't find the file. 446e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (strcmp (".", dir_ref.data()) == 0) 447e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return false; 448e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice 449e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice m_directory.SetCString (dir_ref.data()); 450e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (Exists()) 451e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return true; 452e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice else 453e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 454e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // If FindProgramByName found the file, it returns the directory + filename in its return results. 455e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice // We need to separate them. 456537a7a86687683fd403ce652d178fbc89e06ef9fGreg Clayton FileSpec tmp_file (dir_ref.data(), false); 457e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice if (tmp_file.Exists()) 458e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice { 459e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice m_directory = tmp_file.m_directory; 460e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return true; 461e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 462e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 463e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 464e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice } 465e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice 466e9ca3a4130bfb76765256549e01c759da8ec2f1dCaroline Tice return false; 467c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham} 468c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 469c4547c59f2e8390bdbf92484c851be06395b8e77Jim Inghambool 470c4547c59f2e8390bdbf92484c851be06395b8e77Jim InghamFileSpec::ResolvePath () 471c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham{ 472c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham char path_buf[PATH_MAX]; 473c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 474c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham if (!GetPath (path_buf, PATH_MAX)) 475c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham return false; 476c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham SetFile (path_buf, true); 477c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham return true; 47824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 47924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 48024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattneruint64_t 48124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetByteSize() const 48224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 48324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 48424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 48524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return file_stats.st_size; 48624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return 0; 48724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 48824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 48924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::FileType 49024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFileType () const 49124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 49224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 49324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 49424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 49524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner mode_t file_type = file_stats.st_mode & S_IFMT; 49624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (file_type) 49724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 49824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFDIR: return eFileTypeDirectory; 49924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFIFO: return eFileTypePipe; 50024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFREG: return eFileTypeRegular; 50124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFSOCK: return eFileTypeSocket; 50224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case S_IFLNK: return eFileTypeSymbolicLink; 50324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 50424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 50524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 50624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return eFileTypeUknown; 50724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 50824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return eFileTypeInvalid; 50924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 51024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 51124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerTimeValue 51224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetModificationTime () const 51324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 51424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner TimeValue mod_time; 51524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 51624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetFileStats (this, &file_stats)) 517b586901fb633b898e19bdfc8d605b4e89a3ab5b8Eli Friedman mod_time.OffsetWithSeconds(file_stats.st_mtime); 51824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return mod_time; 51924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 52024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 52124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 52224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Directory string get accessor. 52324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 52424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerConstString & 52524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetDirectory() 52624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 52724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_directory; 52824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 52924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 53024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 53124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Directory string const get accessor. 53224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 53324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst ConstString & 53424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetDirectory() const 53524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 53624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_directory; 53724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 53824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 53924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 54024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Filename string get accessor. 54124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 54224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerConstString & 54324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFilename() 54424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 54524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename; 54624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 54724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 54824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 54924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Filename string const get accessor. 55024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 55124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerconst ConstString & 55224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetFilename() const 55324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 55424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename; 55524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 55624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 55724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 55824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Extract the directory and path into a fixed buffer. This is 55924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// needed as the directory and path are stored in separate string 56024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// values. 56124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 56224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 56324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::GetPath(char *path, size_t max_path_length) const 56424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 56524b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (max_path_length) 56624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 56724b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton const char *dirname = m_directory.AsCString(); 56824b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton const char *filename = m_filename.AsCString(); 56924b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (dirname) 57024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 57124b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (filename) 57224b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton { 57324b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton return (size_t)::snprintf (path, max_path_length, "%s/%s", dirname, filename) < max_path_length; 57424b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton } 57524b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton else 57624b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton { 57724b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton size_t dir_len = m_directory.GetLength() + 1; 57824b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (dir_len < max_path_length) 57924b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton { 58024b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton ::memcpy (path, dirname, dir_len); 58124b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton return true; 58224b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton } 58324b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton } 58424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 58524b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton else if (filename) 58624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 58724b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton size_t filename_len = m_filename.GetLength() + 1; 58824b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton if (filename_len < max_path_length) 58924b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton { 59024b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton ::memcpy (path, filename, filename_len); 59124b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton return true; 59224b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton } 59324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 59424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 59524b48ff28b7c60dd4598212c3e77935a0fc1142dGreg Clayton path[0] = '\0'; 59624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 59724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 59824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 59924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 60024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns a shared pointer to a data buffer that contains all or 60124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// part of the contents of a file. The data is memory mapped and 60224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// will lazily page in data from the file as memory is accessed. 60324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The data that is mappped will start "file_offset" bytes into the 60424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// file, and "file_size" bytes will be mapped. If "file_size" is 60524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// greater than the number of bytes available in the file starting 60624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// at "file_offset", the number of bytes will be appropriately 60724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// truncated. The final number of bytes that get mapped can be 60824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// verified using the DataBuffer::GetByteSize() function. 60924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 61024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDataBufferSP 61124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::MemoryMapFileContents(off_t file_offset, size_t file_size) const 61224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 61324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DataBufferSP data_sp; 61424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner auto_ptr<DataBufferMemoryMap> mmap_data(new DataBufferMemoryMap()); 61524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (mmap_data.get()) 61624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 61724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (mmap_data->MemoryMapFromFileSpec (this, file_offset, file_size) >= file_size) 61824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_sp.reset(mmap_data.release()); 61924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 62024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return data_sp; 62124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 62224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 62324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 62424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 62524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Return the size in bytes that this object takes in memory. This 62624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// returns the size in bytes of this object, not any shared string 62724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// values it may refer to. 62824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 62924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnersize_t 63024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::MemorySize() const 63124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 63224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return m_filename.MemorySize() + m_directory.MemorySize(); 63324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 63424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 635704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 636704363531ee4877ccc6d35d0702876096f54c67bGreg Claytonsize_t 637704363531ee4877ccc6d35d0702876096f54c67bGreg ClaytonFileSpec::ReadFileContents (off_t file_offset, void *dst, size_t dst_len) const 638704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton{ 639704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton size_t bytes_read = 0; 640704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton char resolved_path[PATH_MAX]; 641704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (GetPath(resolved_path, sizeof(resolved_path))) 642704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 643704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton int fd = ::open (resolved_path, O_RDONLY, 0); 644704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (fd != -1) 645704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 646704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton struct stat file_stats; 647704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (::fstat (fd, &file_stats) == 0) 648704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 649704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton // Read bytes directly into our basic_string buffer 650704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (file_stats.st_size > 0) 651704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 652704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton off_t lseek_result = 0; 653704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (file_offset > 0) 654704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton lseek_result = ::lseek (fd, file_offset, SEEK_SET); 655704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 656704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (lseek_result == file_offset) 657704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton { 658704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton ssize_t n = ::read (fd, dst, dst_len); 659704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (n >= 0) 660704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton bytes_read = n; 661704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 662704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 663704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 664704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 665704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton close(fd); 666704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton } 667704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton return bytes_read; 668704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton} 669704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 67024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 67124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Returns a shared pointer to a data buffer that contains all or 67224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// part of the contents of a file. The data copies into a heap based 67324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buffer that lives in the DataBuffer shared pointer object returned. 67424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The data that is cached will start "file_offset" bytes into the 67524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// file, and "file_size" bytes will be mapped. If "file_size" is 67624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// greater than the number of bytes available in the file starting 67724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// at "file_offset", the number of bytes will be appropriately 67824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// truncated. The final number of bytes that get mapped can be 67924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// verified using the DataBuffer::GetByteSize() function. 68024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//------------------------------------------------------------------ 68124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDataBufferSP 682704363531ee4877ccc6d35d0702876096f54c67bGreg ClaytonFileSpec::ReadFileContents (off_t file_offset, size_t file_size) const 68324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 68424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DataBufferSP data_sp; 68524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner char resolved_path[PATH_MAX]; 68624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (GetPath(resolved_path, sizeof(resolved_path))) 68724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 68824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int fd = ::open (resolved_path, O_RDONLY, 0); 68924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (fd != -1) 69024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 69124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner struct stat file_stats; 69224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (::fstat (fd, &file_stats) == 0) 69324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 69424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (file_stats.st_size > 0) 69524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 69624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner off_t lseek_result = 0; 69724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (file_offset > 0) 69824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner lseek_result = ::lseek (fd, file_offset, SEEK_SET); 69924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 70024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (lseek_result < 0) 70124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 70224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Get error from errno 70324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 70424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (lseek_result == file_offset) 70524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 706704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton const size_t bytes_left = file_stats.st_size - file_offset; 707704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton size_t num_bytes_to_read = file_size; 708704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton if (num_bytes_to_read > bytes_left) 709704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton num_bytes_to_read = bytes_left; 710704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton 71124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner std::auto_ptr<DataBufferHeap> data_heap_ap; 712704363531ee4877ccc6d35d0702876096f54c67bGreg Clayton data_heap_ap.reset(new DataBufferHeap(num_bytes_to_read, '\0')); 71324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 71424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (data_heap_ap.get()) 71524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 71624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ssize_t bytesRead = ::read (fd, (void *)data_heap_ap->GetBytes(), data_heap_ap->GetByteSize()); 71724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (bytesRead >= 0) 71824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 71924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Make sure we read exactly what we asked for and if we got 72024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // less, adjust the array 72154e7afa84d945f9137f9372ecde432f9e1a702fcGreg Clayton if ((size_t)bytesRead < data_heap_ap->GetByteSize()) 72224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_heap_ap->SetByteSize(bytesRead); 72324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner data_sp.reset(data_heap_ap.release()); 72424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 72524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 72624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 72724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 72824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 72924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 73024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner close(fd); 73124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 73224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return data_sp; 73324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 73424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 7353d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Claytonsize_t 73624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerFileSpec::ReadFileLines (STLStringArray &lines) 73724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 73824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner lines.clear(); 7393d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton char path[PATH_MAX]; 7403d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton if (GetPath(path, sizeof(path))) 74124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 7423d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton ifstream file_stream (path); 74324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 7443d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton if (file_stream) 7453d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton { 7463d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton std::string line; 7473d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton while (getline (file_stream, line)) 7483d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton lines.push_back (line); 7493d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton } 7503d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton } 7513d0e2c2de1b965b6dc171a618ddb8144419ae6f5Greg Clayton return lines.size(); 75224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 753