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authorDaniel Baumann <daniel.baumann@progress-linux.org>2023-09-04 08:57:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2023-09-04 08:57:49 +0000
commit5f647647b2683875bdbed970d955a9e5123284bd (patch)
tree66dcf1d9f7a60cd19dd9ac410e27d5f6ead521d3 /libnetdata/threads
parentReleasing debian version 1.42.1-1. (diff)
downloadnetdata-5f647647b2683875bdbed970d955a9e5123284bd.tar.xz
netdata-5f647647b2683875bdbed970d955a9e5123284bd.zip
Merging upstream version 1.42.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libnetdata/threads')
-rw-r--r--libnetdata/threads/threads.c21
-rw-r--r--libnetdata/threads/threads.h34
2 files changed, 51 insertions, 4 deletions
diff --git a/libnetdata/threads/threads.c b/libnetdata/threads/threads.c
index adce0463c..ae3c7106d 100644
--- a/libnetdata/threads/threads.c
+++ b/libnetdata/threads/threads.c
@@ -123,10 +123,12 @@ size_t netdata_threads_init(void) {
// --------------------------------------------------------------------
// get the required stack size of the threads of netdata
- netdata_threads_attr = callocz(1, sizeof(pthread_attr_t));
- i = pthread_attr_init(netdata_threads_attr);
- if(i != 0)
- fatal("pthread_attr_init() failed with code %d.", i);
+ if(!netdata_threads_attr) {
+ netdata_threads_attr = callocz(1, sizeof(pthread_attr_t));
+ i = pthread_attr_init(netdata_threads_attr);
+ if (i != 0)
+ fatal("pthread_attr_init() failed with code %d.", i);
+ }
size_t stacksize = 0;
i = pthread_attr_getstacksize(netdata_threads_attr, &stacksize);
@@ -159,6 +161,17 @@ void netdata_threads_init_after_fork(size_t stacksize) {
}
// ----------------------------------------------------------------------------
+// threads init for external plugins
+
+void netdata_threads_init_for_external_plugins(size_t stacksize) {
+ size_t default_stacksize = netdata_threads_init();
+ if(default_stacksize < 1 * 1024 * 1024)
+ default_stacksize = 1 * 1024 * 1024;
+
+ netdata_threads_init_after_fork(stacksize ? stacksize : default_stacksize);
+}
+
+// ----------------------------------------------------------------------------
// netdata_thread_create
void rrdset_thread_rda_free(void);
diff --git a/libnetdata/threads/threads.h b/libnetdata/threads/threads.h
index ad31b8816..acb4e6ba2 100644
--- a/libnetdata/threads/threads.h
+++ b/libnetdata/threads/threads.h
@@ -20,12 +20,46 @@ typedef enum {
typedef pthread_t netdata_thread_t;
+struct netdata_static_thread {
+ // the name of the thread as it should appear in the logs
+ char *name;
+
+ // the section of netdata.conf to check if this is enabled or not
+ char *config_section;
+
+ // the name of the config option to check if it is true or false
+ char *config_name;
+
+ // the current status of the thread
+ volatile sig_atomic_t enabled;
+
+ // internal use, to maintain a pointer to the created thread
+ netdata_thread_t *thread;
+
+ // an initialization function to run before spawning the thread
+ void (*init_routine) (void);
+
+ // the threaded worker
+ void *(*start_routine) (void *);
+
+ // the environment variable to create
+ char *env_name;
+
+ // global variable
+ bool *global_variable;
+};
+
+#define NETDATA_MAIN_THREAD_RUNNING CONFIG_BOOLEAN_YES
+#define NETDATA_MAIN_THREAD_EXITING (CONFIG_BOOLEAN_YES + 1)
+#define NETDATA_MAIN_THREAD_EXITED CONFIG_BOOLEAN_NO
+
#define NETDATA_THREAD_TAG_MAX 100
const char *netdata_thread_tag(void);
int netdata_thread_tag_exists(void);
size_t netdata_threads_init(void);
void netdata_threads_init_after_fork(size_t stacksize);
+void netdata_threads_init_for_external_plugins(size_t stacksize);
int netdata_thread_create(netdata_thread_t *thread, const char *tag, NETDATA_THREAD_OPTIONS options, void *(*start_routine) (void *), void *arg);