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Report error codes from dmon_watch_add

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This commit is contained in:
Francesco Abbate
2022-01-09 23:26:11 +01:00
parent 39366d3a09
commit f0aea5b1a4
3 changed files with 17 additions and 4 deletions
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lib/dmon/dmon_extra.h
+6 -2
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@@ -27,7 +27,7 @@
extern "C" {
#endif
DMON_API_DECL bool dmon_watch_add(dmon_watch_id id, const char* subdir);
DMON_API_DECL bool dmon_watch_add(dmon_watch_id id, const char* subdir, dmon_error *error_code);
DMON_API_DECL bool dmon_watch_rm(dmon_watch_id id, const char* watchdir);
#ifdef __cplusplus
@@ -36,7 +36,7 @@ DMON_API_DECL bool dmon_watch_rm(dmon_watch_id id, const char* watchdir);
#ifdef DMON_IMPL
#if DMON_OS_LINUX
DMON_API_IMPL bool dmon_watch_add(dmon_watch_id id, const char* watchdir)
DMON_API_IMPL bool dmon_watch_add(dmon_watch_id id, const char* watchdir, dmon_error *error_code)
{
DMON_ASSERT(id.id > 0 && id.id <= DMON_MAX_WATCHES);
@@ -64,6 +64,7 @@ DMON_API_IMPL bool dmon_watch_add(dmon_watch_id id, const char* watchdir)
dmon__strcpy(fullpath, sizeof(fullpath), watch->rootdir);
dmon__strcat(fullpath, sizeof(fullpath), watchdir);
if (stat(fullpath, &st) != 0 || (st.st_mode & S_IFDIR) == 0) {
*error_code = DMON_ERROR_UNSUPPORTED_SYMLINK;
if (!skip_lock)
pthread_mutex_unlock(&_dmon.mutex);
return false;
@@ -80,6 +81,7 @@ DMON_API_IMPL bool dmon_watch_add(dmon_watch_id id, const char* watchdir)
// check that the directory is not already added
for (int i = 0, c = stb_sb_count(watch->subdirs); i < c; i++) {
if (strcmp(subdir.rootdir, watch->subdirs[i].rootdir) == 0) {
*error_code = DMON_ERROR_SUBDIR_LOCATION;
if (!skip_lock)
pthread_mutex_unlock(&_dmon.mutex);
return false;
@@ -92,6 +94,7 @@ DMON_API_IMPL bool dmon_watch_add(dmon_watch_id id, const char* watchdir)
dmon__strcat(fullpath, sizeof(fullpath), subdir.rootdir);
int wd = inotify_add_watch(watch->fd, fullpath, inotify_mask);
if (wd == -1) {
*error_code = DMON_ERROR_WATCH_DIR;
if (!skip_lock)
pthread_mutex_unlock(&_dmon.mutex);
return false;
@@ -136,6 +139,7 @@ DMON_API_IMPL bool dmon_watch_rm(dmon_watch_id id, const char* watchdir)
}
}
if (i >= c) {
*error_code = DMON_ERROR_SUBDIR_LOCATION;
if (!skip_lock)
pthread_mutex_unlock(&_dmon.mutex);
return false;