/*
* Open the map file and allocate a structure to manage it.
*
* We create a private mapping because we want to terminate the log tag
* strings with '\0'.
*/
EventTagMap* android_openEventTagMap(const char* fileName)
{
EventTagMap* newTagMap;
off_t end;
int fd = -1;
newTagMap = calloc(1, sizeof(EventTagMap));
if (newTagMap == NULL)
return NULL;
fd = open(fileName, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "%s: unable to open map '%s': %s\n",
OUT_TAG, fileName, strerror(errno));
goto fail;
}
end = lseek(fd, 0L, SEEK_END);
(void) lseek(fd, 0L, SEEK_SET);
if (end < 0) {
fprintf(stderr, "%s: unable to seek map '%s'\n", OUT_TAG, fileName);
goto fail;
}
newTagMap->mapAddr = mmap(NULL, end, PROT_READ | PROT_WRITE, MAP_PRIVATE,
fd, 0);
if (newTagMap->mapAddr == MAP_FAILED) {
fprintf(stderr, "%s: mmap(%s) failed: %s\n",
OUT_TAG, fileName, strerror(errno));
goto fail;
}
newTagMap->mapLen = end;
if (processFile(newTagMap) != 0)
goto fail;
return newTagMap;
fail:
android_closeEventTagMap(newTagMap);
if (fd >= 0)
close(fd);
return NULL;
}
/*
* Open the map file and allocate a structure to manage it.
*
* We create a private mapping because we want to terminate the log tag
* strings with '\0'.
*/
EventTagMap* android_openEventTagMap(const char* fileName)
{
EventTagMap* newTagMap;
off_t end;
int fd = -1;
newTagMap = calloc(1, sizeof(EventTagMap));
if (newTagMap == NULL)
return NULL;
fd = open(fileName, O_RDONLY);
if (fd < 0) {
goto fail;
}
end = lseek(fd, 0L, SEEK_END);
(void) lseek(fd, 0L, SEEK_SET);
if (end < 0) {
goto fail;
}
newTagMap->mapAddr = mmap(NULL, end, PROT_READ | PROT_WRITE, MAP_PRIVATE,
fd, 0);
if (newTagMap->mapAddr == MAP_FAILED) {
goto fail;
}
newTagMap->mapLen = end;
if (processFile(newTagMap) != 0)
goto fail;
if (fd >= 0)
close(fd);
return newTagMap;
fail:
android_closeEventTagMap(newTagMap);
if (fd >= 0)
close(fd);
return NULL;
}