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authorDaniel Baumann <daniel.baumann@progress-linux.org>2023-02-06 16:11:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2023-02-06 16:11:34 +0000
commitd079b656b4719739b2247dcd9d46e9bec793095a (patch)
treed2c950c70a776bcf697c963151c5bd959f8a9f03 /libnetdata/popen
parentReleasing debian version 1.37.1-2. (diff)
downloadnetdata-d079b656b4719739b2247dcd9d46e9bec793095a.tar.xz
netdata-d079b656b4719739b2247dcd9d46e9bec793095a.zip
Merging upstream version 1.38.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libnetdata/popen')
-rw-r--r--libnetdata/popen/README.md10
-rw-r--r--libnetdata/popen/popen.c18
2 files changed, 17 insertions, 11 deletions
diff --git a/libnetdata/popen/README.md b/libnetdata/popen/README.md
index db4aefaed..804690d13 100644
--- a/libnetdata/popen/README.md
+++ b/libnetdata/popen/README.md
@@ -1,5 +1,15 @@
<!--
+title: "popen"
custom_edit_url: https://github.com/netdata/netdata/edit/master/libnetdata/popen/README.md
+sidebar_label: "popen"
+learn_status: "Published"
+learn_topic_type: "Tasks"
+learn_rel_path: "Developers/libnetdata libraries"
-->
+# popen
+
+Process management library
+
+
diff --git a/libnetdata/popen/popen.c b/libnetdata/popen/popen.c
index 57f957f63..5ed74ae95 100644
--- a/libnetdata/popen/popen.c
+++ b/libnetdata/popen/popen.c
@@ -43,7 +43,7 @@ static void netdata_popen_tracking_add_pid_unsafe(pid_t pid) {
mp = mallocz(sizeof(struct netdata_popen));
mp->pid = pid;
- DOUBLE_LINKED_LIST_PREPEND_UNSAFE(netdata_popen_root, mp, prev, next);
+ DOUBLE_LINKED_LIST_PREPEND_ITEM_UNSAFE(netdata_popen_root, mp, prev, next);
}
// myp_del deletes pid if we're tracking.
@@ -61,7 +61,7 @@ static void netdata_popen_tracking_del_pid(pid_t pid) {
}
if(mp) {
- DOUBLE_LINKED_LIST_REMOVE_UNSAFE(netdata_popen_root, mp, prev, next);
+ DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(netdata_popen_root, mp, prev, next);
freez(mp);
}
else
@@ -96,7 +96,7 @@ void netdata_popen_tracking_cleanup(void) {
while(netdata_popen_root) {
struct netdata_popen *mp = netdata_popen_root;
- DOUBLE_LINKED_LIST_REMOVE_UNSAFE(netdata_popen_root, mp, prev, next);
+ DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(netdata_popen_root, mp, prev, next);
freez(mp);
}
@@ -163,8 +163,7 @@ static int popene_internal(volatile pid_t *pidptr, char **env, uint8_t flags, FI
posix_spawnattr_t attr;
posix_spawn_file_actions_t fa;
- int stdin_fd_to_exclude_from_closing = -1;
- int stdout_fd_to_exclude_from_closing = -1;
+ unsigned int fds_to_exclude_from_closing = OPEN_FD_EXCLUDE_STDERR;
if(posix_spawn_file_actions_init(&fa)) {
error("POPEN: posix_spawn_file_actions_init() failed.");
@@ -195,7 +194,7 @@ static int popene_internal(volatile pid_t *pidptr, char **env, uint8_t flags, FI
if (posix_spawn_file_actions_addopen(&fa, STDIN_FILENO, "/dev/null", O_RDONLY, 0)) {
error("POPEN: posix_spawn_file_actions_addopen() on stdin to /dev/null failed.");
// this is not a fatal error
- stdin_fd_to_exclude_from_closing = STDIN_FILENO;
+ fds_to_exclude_from_closing |= OPEN_FD_EXCLUDE_STDIN;
}
}
@@ -222,16 +221,13 @@ static int popene_internal(volatile pid_t *pidptr, char **env, uint8_t flags, FI
if (posix_spawn_file_actions_addopen(&fa, STDOUT_FILENO, "/dev/null", O_WRONLY, 0)) {
error("POPEN: posix_spawn_file_actions_addopen() on stdout to /dev/null failed.");
// this is not a fatal error
- stdout_fd_to_exclude_from_closing = STDOUT_FILENO;
+ fds_to_exclude_from_closing |= OPEN_FD_EXCLUDE_STDOUT;
}
}
if(flags & POPEN_FLAG_CLOSE_FD) {
// Mark all files to be closed by the exec() stage of posix_spawn()
- for(int i = (int)(sysconf(_SC_OPEN_MAX) - 1); i >= 0; i--) {
- if(likely(i != STDERR_FILENO && i != stdin_fd_to_exclude_from_closing && i != stdout_fd_to_exclude_from_closing))
- (void)fcntl(i, F_SETFD, FD_CLOEXEC);
- }
+ for_each_open_fd(OPEN_FD_ACTION_FD_CLOEXEC, fds_to_exclude_from_closing);
}
attr_rc = posix_spawnattr_init(&attr);