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authorWarren Dukes <warren.dukes@gmail.com>2004-04-11 18:27:12 +0000
committerWarren Dukes <warren.dukes@gmail.com>2004-04-11 18:27:12 +0000
commitabc075c4319ebda03ddcc2bfb4ff5d54596eb92d (patch)
treea4f5438e7b8bbfd11f9e980304e1c750ffa81f8e /src/directory.c
parentc1ab52dcb9be8995ea7154d91f21a7a16d463033 (diff)
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ok, fix some bug due to a child process dieing before the parent can
even assign pid, thus we need to block CHLD signal around fork(); git-svn-id: https://svn.musicpd.org/mpd/trunk@694 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to '')
-rw-r--r--src/directory.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/directory.c b/src/directory.c
index d34c0d553..a595c061b 100644
--- a/src/directory.c
+++ b/src/directory.c
@@ -117,6 +117,7 @@ void directory_sigChldHandler(int pid, int status) {
DEBUG("direcotry_sigChldHandler: "
"updated db succesffully\n");
}
+ else ERROR("problems updating db\n");
directory_updatePid = 0;
}
}
@@ -127,8 +128,12 @@ int updateInit(FILE * fp, List * pathList) {
return -1;
}
+ /* need to block CHLD signal, cause it can exit before we
+ even get a chance to assign directory_updatePID */
+ blockSignals();
directory_updatePid = fork();
if(directory_updatePid==0) {
+ unblockSignals();
/* child */
struct sigaction sa;
sa.sa_flags = 0;
@@ -163,8 +168,6 @@ int updateInit(FILE * fp, List * pathList) {
}
else {
if(updateDirectory(directory)<0) {
- ERROR("problems updating music "
- "db\n");
exit(EXIT_FAILURE);
}
}
@@ -175,19 +178,19 @@ int updateInit(FILE * fp, List * pathList) {
if(writeDirectoryDB()<0) {
ERROR("problems writing music db file, \"%s\"\n",
directorydb);
- myfprintf(fp,"%s problems writing music db\n",
- COMMAND_RESPOND_ERROR);
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
else if(directory_updatePid < 0) {
+ unblockSignals();
ERROR("updateInit: Problems forking()'ing\n");
myfprintf(fp,"%s problems trying to update\n",
COMMAND_RESPOND_ERROR);
directory_updatePid = 0;
return -1;
}
+ unblockSignals();
directory_updateJobId++;
if(directory_updateJobId > 1<<15) directory_updateJobId = 1;