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-rw-r--r--libnetdata/threads/Makefile.am8
-rw-r--r--libnetdata/threads/README.md12
-rw-r--r--libnetdata/threads/threads.c340
-rw-r--r--libnetdata/threads/threads.h87
4 files changed, 0 insertions, 447 deletions
diff --git a/libnetdata/threads/Makefile.am b/libnetdata/threads/Makefile.am
deleted file mode 100644
index 161784b8..00000000
--- a/libnetdata/threads/Makefile.am
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-AUTOMAKE_OPTIONS = subdir-objects
-MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
-
-dist_noinst_DATA = \
- README.md \
- $(NULL)
diff --git a/libnetdata/threads/README.md b/libnetdata/threads/README.md
deleted file mode 100644
index 7e9e493f..00000000
--- a/libnetdata/threads/README.md
+++ /dev/null
@@ -1,12 +0,0 @@
-<!--
-title: Threads
-custom_edit_url: https://github.com/netdata/netdata/edit/master/libnetdata/threads/README.md
-sidebar_label: "Threads"
-learn_status: "Published"
-learn_topic_type: "Tasks"
-learn_rel_path: "Developers/libnetdata"
--->
-
-# Threads
-
-Netdata uses a custom threads library
diff --git a/libnetdata/threads/threads.c b/libnetdata/threads/threads.c
deleted file mode 100644
index c14f9a7e..00000000
--- a/libnetdata/threads/threads.c
+++ /dev/null
@@ -1,340 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "../libnetdata.h"
-
-static pthread_attr_t *netdata_threads_attr = NULL;
-
-// ----------------------------------------------------------------------------
-// per thread data
-
-typedef struct {
- void *arg;
- char tag[NETDATA_THREAD_NAME_MAX + 1];
- void *(*start_routine) (void *);
- NETDATA_THREAD_OPTIONS options;
-} NETDATA_THREAD;
-
-static __thread NETDATA_THREAD *netdata_thread = NULL;
-
-inline int netdata_thread_tag_exists(void) {
- return (netdata_thread && *netdata_thread->tag);
-}
-
-static const char *thread_name_get(bool recheck) {
- static __thread char threadname[NETDATA_THREAD_NAME_MAX + 1] = "";
-
- if(netdata_thread_tag_exists())
- strncpyz(threadname, netdata_thread->tag, NETDATA_THREAD_NAME_MAX);
- else {
- if(!recheck && threadname[0])
- return threadname;
-
-#if defined(__FreeBSD__)
- pthread_get_name_np(pthread_self(), threadname, NETDATA_THREAD_NAME_MAX + 1);
- if(strcmp(threadname, "netdata") == 0)
- strncpyz(threadname, "MAIN", NETDATA_THREAD_NAME_MAX);
-#elif defined(__APPLE__)
- strncpyz(threadname, "MAIN", NETDATA_THREAD_NAME_MAX);
-#elif defined(HAVE_PTHREAD_GETNAME_NP)
- pthread_getname_np(pthread_self(), threadname, NETDATA_THREAD_NAME_MAX + 1);
- if(strcmp(threadname, "netdata") == 0)
- strncpyz(threadname, "MAIN", NETDATA_THREAD_NAME_MAX);
-#else
- strncpyz(threadname, "MAIN", NETDATA_THREAD_NAME_MAX);
-#endif
- }
-
- return threadname;
-}
-
-const char *netdata_thread_tag(void) {
- return thread_name_get(false);
-}
-
-static size_t webrtc_id = 0;
-static __thread bool webrtc_name_set = false;
-void webrtc_set_thread_name(void) {
- if(!netdata_thread && !webrtc_name_set) {
- webrtc_name_set = true;
- char threadname[NETDATA_THREAD_NAME_MAX + 1];
-
-#if defined(__FreeBSD__)
- snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "WEBRTC[%zu]", __atomic_fetch_add(&webrtc_id, 1, __ATOMIC_RELAXED));
- pthread_set_name_np(pthread_self(), threadname);
-#elif defined(__APPLE__)
- snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "WEBRTC[%zu]", __atomic_fetch_add(&webrtc_id, 1, __ATOMIC_RELAXED));
- pthread_setname_np(threadname);
-#elif defined(HAVE_PTHREAD_GETNAME_NP)
- pthread_getname_np(pthread_self(), threadname, NETDATA_THREAD_NAME_MAX+1);
- if(strcmp(threadname, "netdata") == 0) {
- snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "WEBRTC[%zu]", __atomic_fetch_add(&webrtc_id, 1, __ATOMIC_RELAXED));
- pthread_setname_np(pthread_self(), threadname);
- }
-#else
- snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "WEBRTC[%zu]", __atomic_fetch_add(&webrtc_id, 1, __ATOMIC_RELAXED));
- pthread_setname_np(pthread_self(), threadname);
-#endif
-
- thread_name_get(true);
- }
-}
-
-// ----------------------------------------------------------------------------
-// compatibility library functions
-
-static __thread pid_t gettid_cached_tid = 0;
-pid_t gettid(void) {
- pid_t tid = 0;
-
- if(likely(gettid_cached_tid > 0))
- return gettid_cached_tid;
-
-#ifdef __FreeBSD__
-
- tid = (pid_t)pthread_getthreadid_np();
-
-#elif defined(__APPLE__)
-
- #if (defined __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060)
- uint64_t curthreadid;
- pthread_threadid_np(NULL, &curthreadid);
- tid = (pid_t)curthreadid;
- #else /* __MAC_OS_X_VERSION_MIN_REQUIRED */
- tid = (pid_t)pthread_self;
- #endif /* __MAC_OS_X_VERSION_MIN_REQUIRED */
-
-#else /* __APPLE__*/
-
- tid = (pid_t)syscall(SYS_gettid);
-
-#endif /* __FreeBSD__, __APPLE__*/
-
- gettid_cached_tid = tid;
- return tid;
-}
-
-// ----------------------------------------------------------------------------
-// early initialization
-
-size_t netdata_threads_init(void) {
- int i;
-
- // --------------------------------------------------------------------
- // get the required stack size of the threads of netdata
-
- 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);
- if(i != 0)
- fatal("pthread_attr_getstacksize() failed with code %d.", i);
-
- return stacksize;
-}
-
-// ----------------------------------------------------------------------------
-// late initialization
-
-void netdata_threads_init_after_fork(size_t stacksize) {
- int i;
-
- // ------------------------------------------------------------------------
- // set pthread stack size
-
- if(netdata_threads_attr && stacksize > (size_t)PTHREAD_STACK_MIN) {
- i = pthread_attr_setstacksize(netdata_threads_attr, stacksize);
- if(i != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "pthread_attr_setstacksize() to %zu bytes, failed with code %d.", stacksize, i);
- else
- nd_log(NDLS_DAEMON, NDLP_DEBUG, "Set threads stack size to %zu bytes", stacksize);
- }
- else
- nd_log(NDLS_DAEMON, NDLP_WARNING, "Invalid pthread stacksize %zu", 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);
-void sender_thread_buffer_free(void);
-void query_target_free(void);
-void service_exits(void);
-void rrd_collector_finished(void);
-
-static void thread_cleanup(void *ptr) {
- if(netdata_thread != ptr) {
- NETDATA_THREAD *info = (NETDATA_THREAD *)ptr;
- nd_log(NDLS_DAEMON, NDLP_ERR, "THREADS: internal error - thread local variable does not match the one passed to this function. Expected thread '%s', passed thread '%s'", netdata_thread->tag, info->tag);
- }
-
- if(!(netdata_thread->options & NETDATA_THREAD_OPTION_DONT_LOG_CLEANUP))
- nd_log(NDLS_DAEMON, NDLP_DEBUG, "thread with task id %d finished", gettid());
-
- rrd_collector_finished();
- sender_thread_buffer_free();
- rrdset_thread_rda_free();
- query_target_free();
- thread_cache_destroy();
- service_exits();
- worker_unregister();
-
- netdata_thread->tag[0] = '\0';
-
- freez(netdata_thread);
- netdata_thread = NULL;
-}
-
-void netdata_thread_set_tag(const char *tag) {
- if(!tag || !*tag)
- return;
-
- int ret = 0;
-
- char threadname[NETDATA_THREAD_NAME_MAX+1];
- strncpyz(threadname, tag, NETDATA_THREAD_NAME_MAX);
-
-#if defined(__FreeBSD__)
- pthread_set_name_np(pthread_self(), threadname);
-#elif defined(__APPLE__)
- ret = pthread_setname_np(threadname);
-#else
- ret = pthread_setname_np(pthread_self(), threadname);
-#endif
-
- if (ret != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot set pthread name of %d to %s. ErrCode: %d", gettid(), threadname, ret);
- else
- nd_log(NDLS_DAEMON, NDLP_DEBUG, "set name of thread %d to %s", gettid(), threadname);
-
- if(netdata_thread) {
- strncpyz(netdata_thread->tag, threadname, sizeof(netdata_thread->tag) - 1);
- }
-}
-
-void uv_thread_set_name_np(uv_thread_t ut, const char* name) {
- int ret = 0;
-
- char threadname[NETDATA_THREAD_NAME_MAX+1];
- strncpyz(threadname, name, NETDATA_THREAD_NAME_MAX);
-
-#if defined(__FreeBSD__)
- pthread_set_name_np(ut ? ut : pthread_self(), threadname);
-#elif defined(__APPLE__)
- // Apple can only set its own name
- UNUSED(ut);
-#else
- ret = pthread_setname_np(ut ? ut : pthread_self(), threadname);
-#endif
-
- thread_name_get(true);
-
- if (ret)
- nd_log(NDLS_DAEMON, NDLP_NOTICE, "cannot set libuv thread name to %s. Err: %d", threadname, ret);
-}
-
-void os_thread_get_current_name_np(char threadname[NETDATA_THREAD_NAME_MAX + 1])
-{
- threadname[0] = '\0';
-#if defined(__FreeBSD__)
- pthread_get_name_np(pthread_self(), threadname, NETDATA_THREAD_NAME_MAX + 1);
-#elif defined(HAVE_PTHREAD_GETNAME_NP) /* Linux & macOS */
- (void)pthread_getname_np(pthread_self(), threadname, NETDATA_THREAD_NAME_MAX + 1);
-#endif
-}
-
-static void *netdata_thread_init(void *ptr) {
- netdata_thread = (NETDATA_THREAD *)ptr;
-
- if(!(netdata_thread->options & NETDATA_THREAD_OPTION_DONT_LOG_STARTUP))
- nd_log(NDLS_DAEMON, NDLP_DEBUG, "thread created with task id %d", gettid());
-
- if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot set pthread cancel type to DEFERRED.");
-
- if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot set pthread cancel state to ENABLE.");
-
- netdata_thread_set_tag(netdata_thread->tag);
-
- if (!(netdata_thread->options & NETDATA_THREAD_OPTION_JOINABLE)) {
- int rc = pthread_detach(pthread_self());
- if (rc != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING,
- "cannot request detach of newly created %s thread. pthread_detach() failed with code %d",
- netdata_thread->tag, rc);
- }
-
- void *ret = NULL;
- pthread_cleanup_push(thread_cleanup, ptr);
- ret = netdata_thread->start_routine(netdata_thread->arg);
- pthread_cleanup_pop(1);
-
- return ret;
-}
-
-int netdata_thread_create(netdata_thread_t *thread, const char *tag, NETDATA_THREAD_OPTIONS options, void *(*start_routine) (void *), void *arg) {
- NETDATA_THREAD *info = callocz(1, sizeof(NETDATA_THREAD));
- info->arg = arg;
- info->start_routine = start_routine;
- info->options = options;
- strncpyz(info->tag, tag, NETDATA_THREAD_NAME_MAX);
-
- int ret = pthread_create(thread, netdata_threads_attr, netdata_thread_init, info);
- if(ret != 0)
- nd_log(NDLS_DAEMON, NDLP_ERR, "failed to create new thread for %s. pthread_create() failed with code %d", tag, ret);
-
- return ret;
-}
-
-// ----------------------------------------------------------------------------
-// netdata_thread_cancel
-#ifdef NETDATA_INTERNAL_CHECKS
-int netdata_thread_cancel_with_trace(netdata_thread_t thread, int line, const char *file, const char *function) {
-#else
-int netdata_thread_cancel(netdata_thread_t thread) {
-#endif
- int ret = pthread_cancel(thread);
- if(ret != 0)
-#ifdef NETDATA_INTERNAL_CHECKS
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot cancel thread. pthread_cancel() failed with code %d at %d@%s, function %s()", ret, line, file, function);
-#else
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot cancel thread. pthread_cancel() failed with code %d.", ret);
-#endif
-
- return ret;
-}
-
-// ----------------------------------------------------------------------------
-// netdata_thread_join
-
-int netdata_thread_join(netdata_thread_t thread, void **retval) {
- int ret = pthread_join(thread, retval);
- if(ret != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot join thread. pthread_join() failed with code %d.", ret);
-
- return ret;
-}
-
-int netdata_thread_detach(pthread_t thread) {
- int ret = pthread_detach(thread);
- if(ret != 0)
- nd_log(NDLS_DAEMON, NDLP_WARNING, "cannot detach thread. pthread_detach() failed with code %d.", ret);
-
- return ret;
-}
diff --git a/libnetdata/threads/threads.h b/libnetdata/threads/threads.h
deleted file mode 100644
index 97c3c803..00000000
--- a/libnetdata/threads/threads.h
+++ /dev/null
@@ -1,87 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#ifndef NETDATA_THREADS_H
-#define NETDATA_THREADS_H 1
-
-#include "../libnetdata.h"
-
-pid_t gettid(void);
-
-typedef enum {
- NETDATA_THREAD_OPTION_DEFAULT = 0 << 0,
- NETDATA_THREAD_OPTION_JOINABLE = 1 << 0,
- NETDATA_THREAD_OPTION_DONT_LOG_STARTUP = 1 << 1,
- NETDATA_THREAD_OPTION_DONT_LOG_CLEANUP = 1 << 2,
- NETDATA_THREAD_OPTION_DONT_LOG = NETDATA_THREAD_OPTION_DONT_LOG_STARTUP|NETDATA_THREAD_OPTION_DONT_LOG_CLEANUP,
-} NETDATA_THREAD_OPTIONS;
-
-#define netdata_thread_cleanup_push(func, arg) pthread_cleanup_push(func, arg)
-#define netdata_thread_cleanup_pop(execute) pthread_cleanup_pop(execute)
-
-void netdata_thread_set_tag(const char *tag);
-
-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);
-
-#ifdef NETDATA_INTERNAL_CHECKS
-#define netdata_thread_cancel(thread) netdata_thread_cancel_with_trace(thread, __LINE__, __FILE__, __FUNCTION__)
-int netdata_thread_cancel_with_trace(netdata_thread_t thread, int line, const char *file, const char *function);
-#else
-int netdata_thread_cancel(netdata_thread_t thread);
-#endif
-
-int netdata_thread_join(netdata_thread_t thread, void **retval);
-int netdata_thread_detach(pthread_t thread);
-
-#define NETDATA_THREAD_NAME_MAX 15
-void uv_thread_set_name_np(uv_thread_t ut, const char* name);
-void os_thread_get_current_name_np(char threadname[NETDATA_THREAD_NAME_MAX + 1]);
-
-void webrtc_set_thread_name(void);
-
-#define netdata_thread_self pthread_self
-#define netdata_thread_testcancel pthread_testcancel
-
-#endif //NETDATA_THREADS_H
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