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FS-6355 - Patch to have .fsxml file be generated atomic to avoid partial reads when using this file to compare to previous versions/etc.

This commit is contained in:
Brian West 2014-03-13 17:27:36 -05:00
parent 430b8fca6b
commit f087248cfc
1 changed files with 10 additions and 1 deletions
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11
src/switch_xml.c
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@ -1612,6 +1612,7 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file)
FILE *write_fd = NULL;
switch_xml_t xml = NULL;
char *new_file = NULL;
char *new_file_tmp = NULL;
const char *abs, *absw;
abs = strrchr(file, '/');
@ -1628,7 +1629,11 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file)
goto done;
}
if ((write_fd = fopen(new_file, "w+")) == NULL) {
if (!(new_file_tmp = switch_mprintf("%s%s%s.fsxml.tmp", SWITCH_GLOBAL_dirs.log_dir, SWITCH_PATH_SEPARATOR, abs))) {
goto done;
}
if ((write_fd = fopen(new_file_tmp, "w+")) == NULL) {
goto done;
}
@ -1637,6 +1642,9 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file)
if (preprocess(SWITCH_GLOBAL_dirs.conf_dir, file, write_fd, 0) > -1) {
fclose(write_fd);
write_fd = NULL;
if ( rename(new_file_tmp,new_file) ) {
goto done;
}
if ((fd = open(new_file, O_RDONLY, 0)) > -1) {
if ((xml = switch_xml_parse_fd(fd))) {
if (strcmp(abs, SWITCH_GLOBAL_filenames.conf_name)) {
@ -1662,6 +1670,7 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_parse_file(const char *file)
close(fd);
}
switch_safe_free(new_file_tmp);
switch_safe_free(new_file);
return xml;