event_tag_map.cpp revision 018a96d03f0d452bf078084eedcd5693da42308d
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * you may not use this file except in compliance with the License. 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * You may obtain a copy of the License at 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * See the License for the specific language governing permissions and 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * limitations under the License. 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 17a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn#include <assert.h> 18a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn#include <errno.h> 19a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn#include <fcntl.h> 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <string.h> 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/mman.h> 23a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn 24a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn#include <log/event_tag_map.h> 25a04464adaf5b95ae953f8577632d3cf8aa2c80a3Mark Salyzyn#include <log/log.h> 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 27018a96d03f0d452bf078084eedcd5693da42308dMark Salyzyn#include "log_portability.h" 28be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8Mark Salyzyn 29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define OUT_TAG "EventTagMap" 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Single entry. 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef struct EventTag { 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned int tagIndex; 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* tagStr; 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} EventTag; 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Map. 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct EventTagMap { 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* memory-mapped source file; we get strings from here */ 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project void* mapAddr; 45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t mapLen; 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* array of event tags, sorted numerically by tag index */ 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project EventTag* tagArray; 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int numTags; 50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* fwd */ 53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int processFile(EventTagMap* map); 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int countMapLines(const EventTagMap* map); 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int parseMapLines(EventTagMap* map); 56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int scanTagLine(char** pData, EventTag* tag, int lineNum); 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int sortTags(EventTagMap* map); 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Open the map file and allocate a structure to manage it. 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * We create a private mapping because we want to terminate the log tag 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * strings with '\0'. 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 66be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8Mark SalyzynLIBLOG_ABI_PUBLIC EventTagMap* android_openEventTagMap(const char* fileName) 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project EventTagMap* newTagMap; 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project off_t end; 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd = -1; 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project newTagMap = calloc(1, sizeof(EventTagMap)); 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (newTagMap == NULL) 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return NULL; 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd = open(fileName, O_RDONLY); 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fd < 0) { 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: unable to open map '%s': %s\n", 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project OUT_TAG, fileName, strerror(errno)); 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto fail; 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project end = lseek(fd, 0L, SEEK_END); 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (void) lseek(fd, 0L, SEEK_SET); 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (end < 0) { 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: unable to seek map '%s'\n", OUT_TAG, fileName); 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto fail; 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project newTagMap->mapAddr = mmap(NULL, end, PROT_READ | PROT_WRITE, MAP_PRIVATE, 91dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd, 0); 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (newTagMap->mapAddr == MAP_FAILED) { 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: mmap(%s) failed: %s\n", 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project OUT_TAG, fileName, strerror(errno)); 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto fail; 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project newTagMap->mapLen = end; 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (processFile(newTagMap) != 0) 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto fail; 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return newTagMap; 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectfail: 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project android_closeEventTagMap(newTagMap); 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fd >= 0) 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(fd); 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return NULL; 109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Close the map. 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 114be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8Mark SalyzynLIBLOG_ABI_PUBLIC void android_closeEventTagMap(EventTagMap* map) 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (map == NULL) 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project munmap(map->mapAddr, map->mapLen); 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project free(map); 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Look up an entry in the map. 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The entries are sorted by tag number, so we can do a binary search. 127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 128be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8Mark SalyzynLIBLOG_ABI_PUBLIC const char* android_lookupEventTag(const EventTagMap* map, 129be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8Mark Salyzyn int tag) 130dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 131dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int hi, lo, mid; 132dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lo = 0; 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project hi = map->numTags-1; 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (lo <= hi) { 137dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int cmp; 138dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 139dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mid = (lo+hi)/2; 140dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cmp = map->tagArray[mid].tagIndex - tag; 141dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cmp < 0) { 142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* tag is bigger */ 143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lo = mid + 1; 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (cmp > 0) { 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* tag is smaller */ 146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project hi = mid - 1; 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* found */ 149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return map->tagArray[mid].tagStr; 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return NULL; 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Determine whether "c" is a whitespace char. 160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic inline int isCharWhitespace(char c) 162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (c == ' ' || c == '\n' || c == '\r' || c == '\t'); 164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Determine whether "c" is a valid tag char. 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic inline int isCharValidTag(char c) 170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return ((c >= 'A' && c <= 'Z') || 172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (c >= 'a' && c <= 'z') || 173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (c >= '0' && c <= '9') || 174dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (c == '_')); 175dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 176dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Determine whether "c" is a valid decimal digit. 179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 180dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic inline int isCharDigit(char c) 181dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return (c >= '0' && c <= '9'); 183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 187dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Crunch through the file, parsing the contents and creating a tag index. 188dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 189dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int processFile(EventTagMap* map) 190dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 191dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* get a tag count */ 192dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project map->numTags = countMapLines(map); 193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (map->numTags < 0) 194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //printf("+++ found %d tags\n", map->numTags); 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* allocate storage for the tag index array */ 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project map->tagArray = calloc(1, sizeof(EventTag) * map->numTags); 200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (map->tagArray == NULL) 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* parse the file, null-terminating tag strings */ 204dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (parseMapLines(map) != 0) { 205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: file parse failed\n", OUT_TAG); 206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* sort the tags and check for duplicates */ 210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (sortTags(map) != 0) 211dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 214dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Run through all lines in the file, determining whether they're blank, 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * comments, or possibly have a tag entry. 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This is a very "loose" scan. We don't try to detect syntax errors here. 221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The later pass is more careful, but the number of tags found there must 222dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * match the number of tags found here. 223dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 224dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns the number of potential tag entries found. 225dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 226dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int countMapLines(const EventTagMap* map) 227dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int numTags, unknown; 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* cp; 230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* endp; 231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp = (const char*) map->mapAddr; 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp = cp + map->mapLen; 234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 235dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numTags = 0; 236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unknown = 1; 237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (cp < endp) { 238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*cp == '\n') { 239dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unknown = 1; 240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (unknown) { 241dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (isCharDigit(*cp)) { 242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* looks like a tag to me */ 243dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numTags++; 244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unknown = 0; 245dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (isCharWhitespace(*cp)) { 246dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* might be leading whitespace before tag num, keep going */ 247dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 248dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* assume comment; second pass can complain in detail */ 249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unknown = 0; 250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* we've made up our mind; just scan to end of line */ 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp++; 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return numTags; 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Parse the tags out of the file. 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int parseMapLines(EventTagMap* map) 264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int tagNum, lineStart, lineNum; 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char* cp; 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char* endp; 268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 269dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp = (char*) map->mapAddr; 270dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project endp = cp + map->mapLen; 271dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* insist on EOL at EOF; simplifies parsing and null-termination */ 273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*(endp-1) != '\n') { 274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: map file missing EOL on last line\n", OUT_TAG); 275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 277dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 278dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tagNum = 0; 279dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineStart = 1; 280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineNum = 1; 281dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (cp < endp) { 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //printf("{%02x}", *cp); fflush(stdout); 283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*cp == '\n') { 284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineStart = 1; 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineNum++; 286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (lineStart) { 287dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*cp == '#') { 288dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* comment; just scan to end */ 289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineStart = 0; 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (isCharDigit(*cp)) { 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* looks like a tag; scan it out */ 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (tagNum >= map->numTags) { 293dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, 294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s: more tags than expected (%d)\n", OUT_TAG, tagNum); 295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 296dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (scanTagLine(&cp, &map->tagArray[tagNum], lineNum) != 0) 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tagNum++; 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lineNum++; // we eat the '\n' 301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* leave lineStart==1 */ 302dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (isCharWhitespace(*cp)) { 303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* looks like leading whitespace; keep scanning */ 304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, 306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s: unexpected chars (0x%02x) in tag number on line %d\n", 307dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project OUT_TAG, *cp, lineNum); 308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* this is a blank or comment line */ 312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cp++; 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (tagNum != map->numTags) { 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: parsed %d tags, expected %d\n", 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project OUT_TAG, tagNum, map->numTags); 319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Scan one tag line. 327dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 328dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * "*pData" should be pointing to the first digit in the tag number. On 329dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * successful return, it will be pointing to the last character in the 330dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * tag line (i.e. the character before the start of the next line). 331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns 0 on success, nonzero on failure. 333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int scanTagLine(char** pData, EventTag* tag, int lineNum) 335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char* cp = *pData; 337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char* startp; 338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char* endp; 339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned long val; 340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project startp = cp; 342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (isCharDigit(*++cp)) 343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ; 344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *cp = '\0'; 345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project val = strtoul(startp, &endp, 10); 347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project assert(endp == cp); 348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (endp != cp) 349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "ARRRRGH\n"); 350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tag->tagIndex = val; 352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*++cp != '\n' && isCharWhitespace(*cp)) 354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ; 355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*cp == '\n') { 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s: missing tag string on line %d\n", OUT_TAG, lineNum); 359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tag->tagStr = cp; 363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (isCharValidTag(*++cp)) 365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ; 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 367dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*cp == '\n') { 368dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* null terminate and return */ 369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *cp = '\0'; 370dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (isCharWhitespace(*cp)) { 371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* CRLF or trailin spaces; zap this char, then scan for the '\n' */ 372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *cp = '\0'; 373dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 374dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* just ignore the rest of the line till \n 375dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TODO: read the tag description that follows the tag name 376dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 377dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*++cp != '\n') { 378dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 379dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 380dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, 381dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s: invalid tag chars on line %d\n", OUT_TAG, lineNum); 382dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 383dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 384dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 385dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *pData = cp; 386dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 387dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //printf("+++ Line %d: got %d '%s'\n", lineNum, tag->tagIndex, tag->tagStr); 388dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 389dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 390dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 391dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 392dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Compare two EventTags. 393dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 394dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int compareEventTags(const void* v1, const void* v2) 395dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 396dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const EventTag* tag1 = (const EventTag*) v1; 397dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const EventTag* tag2 = (const EventTag*) v2; 398dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 399dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return tag1->tagIndex - tag2->tagIndex; 400dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 401dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 402dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 403dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Sort the EventTag array so we can do fast lookups by tag index. After 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * the sort we do a quick check for duplicate tag indices. 405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns 0 on success. 407dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int sortTags(EventTagMap* map) 409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project qsort(map->tagArray, map->numTags, sizeof(EventTag), compareEventTags); 413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 414dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 1; i < map->numTags; i++) { 415dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (map->tagArray[i].tagIndex == map->tagArray[i-1].tagIndex) { 416dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "%s: duplicate tag entries (%d:%s and %d:%s)\n", 417dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project OUT_TAG, 418dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project map->tagArray[i].tagIndex, map->tagArray[i].tagStr, 419dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project map->tagArray[i-1].tagIndex, map->tagArray[i-1].tagStr); 420dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 421dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 422dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 423dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 424dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 425dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 426