@cryptotaxi247 / netdata / commits / 8fb66be12

libnetdata: make standalone-linkable (#22528)

* libnetdata: register thread-exit cleanups via callbacks Replace the five hard-coded daemon-side cleanup calls in threads.c (rrd_collector_finished, sender_thread_buffer_free, rrdset_thread_rda_free, query_target_free, service_exits) with a register-callback API. The daemon registers its cleanups in rrd_init; libnetdata walks the registered list at thread exit. After this, libnetdata.a no longer carries unresolved references to the five daemon functions. * libnetdata: own all netdata_configured_* globals Move the twelve netdata_configured_* globals (hostname, host_prefix, plus the ten config-path strings) from src/daemon/common.c into a new libnetdata module under src/libnetdata/runtime-paths/. libnetdata owns the storage; the daemon's config layer still writes the values through the extern declarations (now declared once, in libnetdata.h instead of split between libnetdata.h and daemon/common.h). required_dummies.h drops its fallback definitions for these symbols (and for the cleanup functions retired by the sibling commit). The header is kept as a no-op so the ~12 plugins that * libnetdata: remove required_dummies.h The header is no longer needed: libnetdata provides every symbol its consumers used to need local dummies for. Remove the file, the 22 #include lines in plugins / utilities / tests, the entry in CMakeLists.txt, and the stray include in tests/profile/test-eval.c. * libnetdata: move netdata.conf path/hostname loaders into runtime-paths The daemon's two inicfg_get-driven loaders (paths in netdata-conf-directories.c, hostname/host_prefix in netdata-conf-global.c) consisted almost entirely of libnetdata calls operating on libnetdata-owned state. Move them into runtime-paths.c alongside the storage definitions; the daemon wrappers shrink to the orchestration that still needs daemon-specific state (plugin discovery, the FUNCTION_RUN_ONCE guard at each existing entry point). New libnetdata API: void nd_runtime_paths_load_directories_from_inicfg(void); void nd_runtime_paths_load_hostname_from_inicfg(void); Both are idempotent and safe to call multiple times. The daemon's public function names (netdata_conf_section_directories, netdata_conf_section_global_hostname) are unchanged; the 11 existing callers of the former and the 1 caller of the latter need no changes. * libnetdata: initialize cleanup-registry spinlock with SPINLOCK_INITIALIZER Using `{ 0 }` happens to work for the bool-backed spinlock but bypasses the contract on SPINLOCK_IMPL_WITH_MUTEX builds, where the macro expands to `{ .inner = PTHREAD_MUTEX_INITIALIZER }`. * Properly initialize buf. Initialize buf before os_hostname() so the fallback passed to inicfg_get() is always a valid string when hostname lookup fails. Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com> --------- Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

vkalintiris committed May 25, 2026 at 11:42 UTC 8fb66be12c3cdc68ee954152c6af6197c01f3f48

36 files changed +182 -103

CMakeLists.txt

+2 -1

@@ -1012,7 +1012,6 @@ set(LIBNETDATA_FILES

1012 src/libnetdata/procfile/procfile.h

1013 src/libnetdata/query_progress/progress.c

1014 src/libnetdata/query_progress/progress.h

1015 - src/libnetdata/required_dummies.h

1015 src/libnetdata/socket/security.c

1016 src/libnetdata/socket/security.h

1017 src/libnetdata/simple_hashtable/simple_hashtable.h

@@ -1232,6 +1231,8 @@ set(LIBNETDATA_FILES

1231 src/libnetdata/os/mmap_limit.h

1232 src/libnetdata/signals/signals.c

1233 src/libnetdata/signals/signals.h

1234 + src/libnetdata/runtime-paths/runtime-paths.c

1235 + src/libnetdata/runtime-paths/runtime-paths.h

1236 src/libnetdata/os/machine_id.c

1237 src/libnetdata/os/machine_id.h

1238 src/libnetdata/os/process_memory.c

src/cli/cli.c

-1

@@ -2,7 +2,6 @@

3 #include "daemon/pipename.h"

4 #include "daemon/common.h"

5 -#include "libnetdata/required_dummies.h"

6 static uv_pipe_t client_pipe;

7 static uv_write_t write_req;

src/collectors/apps.plugin/apps_plugin.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "apps_plugin.h"

4 -#include "libnetdata/required_dummies.h"

4 #include "libnetdata/parsers/duration.h"

6 #define APPS_PLUGIN_FUNCTIONS() do { \

src/collectors/cgroups.plugin/cgroup-network.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 SPAWN_SERVER *spawn_server = NULL;

src/collectors/cgroups.plugin/tests/test_cgroups_plugin.c

-2

@@ -1,11 +1,9 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "test_cgroups_plugin.h"

4 -#include "libnetdata/required_dummies.h"

5 RRDHOST *localhost;

6 struct config netdata_config;

8 -char *netdata_configured_primary_plugins_dir = NULL;

8 struct k8s_test_data {

9 char *data;

src/collectors/cups.plugin/cups_plugin.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 #include <cups/cups.h>

6 #include <limits.h>

src/collectors/debugfs.plugin/debugfs_plugin.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "debugfs_plugin.h"

4 -#include "libnetdata/required_dummies.h"

5 static char *user_config_dir = CONFIG_DIR;

6 static char *stock_config_dir = LIBCONFIG_DIR;

src/collectors/ebpf.plugin/ebpf.c

-1

@@ -10,7 +10,6 @@

10 #include "ebpf_socket.h"

11 #include "ebpf_unittest.h"

12 #include "libbpf_api/ebpf_library.h"

13 -#include "libnetdata/required_dummies.h"

13 #include "libnetdata/libjudy/judy-malloc.h"

15 /*****************************************************************

src/collectors/freeipmi.plugin/freeipmi_plugin.c

-1

@@ -16,7 +16,6 @@

17 // #define NETDATA_TIMING_REPORT 1

18 #include "libnetdata/libnetdata.h"

19 -#include "libnetdata/required_dummies.h"

20 #define FREEIPMI_GLOBAL_FUNCTION_SENSORS() do { \

21 fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"ipmi-sensors\" %d \"%s\" \"top\" "HTTP_ACCESS_FORMAT" %d\n", \

src/collectors/log2journal/log2journal.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "log2journal.h"

4 -#include "libnetdata/required_dummies.h"

5 // ----------------------------------------------------------------------------

src/collectors/network-viewer.plugin/network-viewer.c

-1

@@ -3,7 +3,6 @@

3 #include "collectors/all.h"

4 #include "libnetdata/libnetdata.h"

6 -#include "libnetdata/required_dummies.h"

7 static SPAWN_SERVER *spawn_srv = NULL;

src/collectors/nfacct.plugin/plugin_nfacct.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 #include <linux/netfilter/nfnetlink_conntrack.h>

6 #include <libmnl/libmnl.h>

src/collectors/perf.plugin/perf_plugin.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 #include <linux/perf_event.h>

src/collectors/slabinfo.plugin/slabinfo.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "database/rrd.h"

4 -#include "libnetdata/required_dummies.h"

5 #define PLUGIN_SLABINFO_NAME "slabinfo.plugin"

6 #define PLUGIN_SLABINFO_PROCFILE "/proc/slabinfo"

src/collectors/systemd-journal.plugin/systemd-main.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "systemd-internals.h"

4 -#include "libnetdata/required_dummies.h"

5 #define ND_SD_JOURNAL_WORKER_THREADS 5

src/collectors/systemd-units.plugin/plugin_systemd_units.c

-1

@@ -2,7 +2,6 @@

3 #include "collectors/all.h"

4 #include "libnetdata/libnetdata.h"

5 -#include "libnetdata/required_dummies.h"

6 #include <linux/capability.h>

7 #include <syslog.h>

src/collectors/utils/local_listeners.c

-1

@@ -2,7 +2,6 @@

3 #include "libnetdata/libnetdata.h"

4 #include "libnetdata/local-sockets/local-sockets.h"

5 -#include "libnetdata/required_dummies.h"

6 // --------------------------------------------------------------------------------------------------------------------

src/collectors/windows-events.plugin/windows-events.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 #include "windows-events.h"

src/collectors/xenstat.plugin/xenstat_plugin.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "libnetdata/libnetdata.h"

4 -#include "libnetdata/required_dummies.h"

5 #include <xenstat.h>

6 #include <libxl.h>

src/daemon/common.c

-13

@@ -2,19 +2,6 @@

3 #include "common.h"

5 -const char *netdata_configured_hostname = NULL;

6 -const char *netdata_configured_user_config_dir = CONFIG_DIR;

7 -const char *netdata_configured_stock_config_dir = LIBCONFIG_DIR;

8 -const char *netdata_configured_stock_data_dir = STOCK_DATA_DIR;

9 -const char *netdata_configured_log_dir = LOG_DIR;

10 -const char *netdata_configured_primary_plugins_dir = PLUGINS_DIR;

11 -const char *netdata_configured_web_dir = WEB_DIR;

12 -const char *netdata_configured_cache_dir = CACHE_DIR;

13 -const char *netdata_configured_varlib_dir = VARLIB_DIR;

14 -const char *netdata_configured_cloud_dir = VARLIB_DIR "/cloud.d";

15 -const char *netdata_configured_home_dir = VARLIB_DIR;

16 -const char *netdata_configured_host_prefix = NULL;

17 -

5 bool netdata_ready = false;

7 // ============================================================================

src/daemon/common.h

-12

@@ -71,18 +71,6 @@ extern "C" {

71 #include "analytics.h"

73 // global netdata daemon variables

74 -extern const char *netdata_configured_hostname;

75 -extern const char *netdata_configured_user_config_dir;

76 -extern const char *netdata_configured_stock_config_dir;

77 -extern const char *netdata_configured_stock_data_dir;

78 -extern const char *netdata_configured_log_dir;

79 -extern const char *netdata_configured_primary_plugins_dir;

80 -extern const char *netdata_configured_web_dir;

81 -extern const char *netdata_configured_cache_dir;

82 -extern const char *netdata_configured_varlib_dir;

83 -extern const char *netdata_configured_cloud_dir;

84 -extern const char *netdata_configured_home_dir;

85 -extern const char *netdata_configured_host_prefix;

74 extern bool netdata_anonymous_statistics_enabled;

76 // Thread-safe system timezone access.

src/daemon/config/netdata-conf-directories.c

+1 -18

@@ -3,27 +3,10 @@

3 #include "netdata-conf-directories.h"

4 #include "daemon/common.h"

6 -static const char *get_varlib_subdir_from_config(const char *prefix, const char *dir) {

7 - char filename[FILENAME_MAX + 1];

8 - snprintfz(filename, FILENAME_MAX, "%s/%s", prefix, dir);

9 - return inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, dir, filename);

10 -}

11 -

6 void netdata_conf_section_directories(void) {

7 FUNCTION_RUN_ONCE();

15 - // ------------------------------------------------------------------------

16 - // get system paths

17 -

18 - netdata_configured_user_config_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "config", netdata_configured_user_config_dir);

19 - netdata_configured_stock_config_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "stock config", netdata_configured_stock_config_dir);

20 - netdata_configured_stock_data_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "stock data", netdata_configured_stock_data_dir);

21 - netdata_configured_log_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "log", netdata_configured_log_dir);

22 - netdata_configured_web_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "web", netdata_configured_web_dir);

23 - netdata_configured_cache_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "cache", netdata_configured_cache_dir);

24 - netdata_configured_varlib_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "lib", netdata_configured_varlib_dir);

25 -

26 - netdata_configured_cloud_dir = get_varlib_subdir_from_config(netdata_configured_varlib_dir, "cloud.d");

9 + nd_runtime_paths_load_directories_from_inicfg();

11 pluginsd_initialize_plugin_directories();

12 netdata_configured_primary_plugins_dir = plugin_directories[PLUGINSD_STOCK_PLUGINS_DIRECTORY_PATH];

src/daemon/config/netdata-conf-global.c

+1 -9

@@ -136,15 +136,7 @@ void libuv_initialize(void) {

136 void netdata_conf_section_global_hostname(void) {

137 FUNCTION_RUN_ONCE();

138

139 - netdata_configured_host_prefix = inicfg_get(&netdata_config, CONFIG_SECTION_GLOBAL, "host access prefix", "");

140 - (void) verify_netdata_host_prefix(true);

141 -

142 - char buf[HOST_NAME_MAX * 4 + 1];

143 - if (!os_hostname(buf, sizeof(buf), netdata_configured_host_prefix))

144 - netdata_log_error("Cannot get machine hostname.");

145 -

146 - netdata_configured_hostname = inicfg_get(&netdata_config, CONFIG_SECTION_GLOBAL, "hostname", buf);

147 - netdata_log_debug(D_OPTIONS, "hostname set to '%s'", netdata_configured_hostname);

139 + nd_runtime_paths_load_hostname_from_inicfg();

140 }

141

142 void netdata_conf_section_global(void) {

src/daemon/main.c

@@ -264,6 +264,13 @@ int netdata_main(int argc, char **argv) {

264 analytics_init();

265 nd_log_initialize_mutexes();

266

267 + // Register the daemon's per-thread cleanup callback. Each subsystem

268 + // should own the registration of its own cleanups; this one lives in

269 + // the daemon because service_exits is a daemon-layer concern. The

270 + // rest are currently registered together in rrd_init() and should be

271 + // moved to their respective subsystems in a follow-up.

272 + nd_thread_register_cleanup(service_exits);

273 +

274 netdata_start_time = now_realtime_sec();

275 usec_t started_ut = now_monotonic_usec();

276 usec_t last_ut = started_ut;

src/database/rrd.c

+12

@@ -70,7 +70,19 @@ inline long align_entries_to_pagesize(RRD_DB_MODE mode, long entries) {

71 void api_v1_management_init(void);

73 +// Thread-exit cleanup callbacks. Registered with libnetdata below;

74 +// called once per thread at exit time, in registration order. All

75 +// callbacks except rrdset_thread_rda_free are declared in their

76 +// owning headers (included via rrd.h); rrdset_thread_rda_free has no

77 +// public header so it is declared locally here.

78 +void rrdset_thread_rda_free(void);

79 +

80 int rrd_init(const char *hostname, struct rrdhost_system_info *system_info, bool unittest) {

81 + nd_thread_register_cleanup(rrd_collector_finished);

82 + nd_thread_register_cleanup(sender_thread_buffer_free);

83 + nd_thread_register_cleanup(rrdset_thread_rda_free);

84 + nd_thread_register_cleanup(query_target_free);

85 +

86 rrdhost_init();

88 if (unlikely(sql_init_meta_database(DB_CHECK_NONE, system_info ? 0 : 1))) {

src/libnetdata/libnetdata.h

+1 -1

@@ -55,7 +55,7 @@ char *find_and_replace(const char *src, const char *find, const char *replace, c

55 bool run_command_and_copy_output_to_stdout(const char *command, int max_line_length);

56 struct web_buffer *run_command_and_get_output_to_buffer(const char *command, int max_line_length);

58 -extern const char *netdata_configured_host_prefix;

58 +#include "runtime-paths/runtime-paths.h"

60 // safe includes before O/S specific functions

61 #include "template-enum.h"

src/libnetdata/log/systemd-cat-native.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "systemd-cat-native.h"

4 -#include "../required_dummies.h"

5 #ifdef __FreeBSD__

6 #include <sys/endian.h>

src/libnetdata/required_dummies.h deleted

-15

@@ -1,15 +0,0 @@

1 -// SPDX-License-Identifier: GPL-3.0-or-later

2 -

3 -#ifndef NETDATA_LIB_DUMMIES_H

4 -#define NETDATA_LIB_DUMMIES_H 1

5 -

6 -void rrdset_thread_rda_free(void){}

7 -void sender_thread_buffer_free(void){}

8 -void query_target_free(void){}

9 -void service_exits(void){}

10 -void rrd_collector_finished(void){}

11 -

12 -// required by get_system_cpus()

13 -const char *netdata_configured_host_prefix = "";

14 -

15 -#endif // NETDATA_LIB_DUMMIES_H

src/libnetdata/runtime-paths/runtime-paths.c new

+56

@@ -0,0 +1,56 @@

1 +// SPDX-License-Identifier: GPL-3.0-or-later

2 +//

3 +// Storage and netdata.conf loaders for the netdata_configured_*

4 +// globals. Compile-time defaults come from build/config.h via the

5 +// libnetdata.h chain.

6 +

7 +#include "../libnetdata.h"

8 +

9 +const char *netdata_configured_hostname = NULL;

10 +const char *netdata_configured_user_config_dir = CONFIG_DIR;

11 +const char *netdata_configured_stock_config_dir = LIBCONFIG_DIR;

12 +const char *netdata_configured_stock_data_dir = STOCK_DATA_DIR;

13 +const char *netdata_configured_log_dir = LOG_DIR;

14 +const char *netdata_configured_primary_plugins_dir = PLUGINS_DIR;

15 +const char *netdata_configured_web_dir = WEB_DIR;

16 +const char *netdata_configured_cache_dir = CACHE_DIR;

17 +const char *netdata_configured_varlib_dir = VARLIB_DIR;

18 +const char *netdata_configured_cloud_dir = VARLIB_DIR "/cloud.d";

19 +const char *netdata_configured_home_dir = VARLIB_DIR;

20 +const char *netdata_configured_host_prefix = NULL;

21 +

22 +// ----------------------------------------------------------------------------

23 +// netdata.conf loaders

24 +

25 +static const char *get_varlib_subdir_from_config(const char *prefix, const char *dir) {

26 + char filename[FILENAME_MAX + 1];

27 + snprintfz(filename, FILENAME_MAX, "%s/%s", prefix, dir);

28 + return inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, dir, filename);

29 +}

30 +

31 +void nd_runtime_paths_load_directories_from_inicfg(void) {

32 + FUNCTION_RUN_ONCE();

33 +

34 + netdata_configured_user_config_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "config", netdata_configured_user_config_dir);

35 + netdata_configured_stock_config_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "stock config", netdata_configured_stock_config_dir);

36 + netdata_configured_stock_data_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "stock data", netdata_configured_stock_data_dir);

37 + netdata_configured_log_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "log", netdata_configured_log_dir);

38 + netdata_configured_web_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "web", netdata_configured_web_dir);

39 + netdata_configured_cache_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "cache", netdata_configured_cache_dir);

40 + netdata_configured_varlib_dir = inicfg_get_path(&netdata_config, CONFIG_SECTION_DIRECTORIES, "lib", netdata_configured_varlib_dir);

41 + netdata_configured_cloud_dir = get_varlib_subdir_from_config(netdata_configured_varlib_dir, "cloud.d");

42 +}

43 +

44 +void nd_runtime_paths_load_hostname_from_inicfg(void) {

45 + FUNCTION_RUN_ONCE();

46 +

47 + netdata_configured_host_prefix = inicfg_get(&netdata_config, CONFIG_SECTION_GLOBAL, "host access prefix", "");

48 + (void) verify_netdata_host_prefix(true);

49 +

50 + char buf[HOST_NAME_MAX * 4 + 1] = "";

51 + if (!os_hostname(buf, sizeof(buf), netdata_configured_host_prefix))

52 + netdata_log_error("Cannot get machine hostname.");

53 +

54 + netdata_configured_hostname = inicfg_get(&netdata_config, CONFIG_SECTION_GLOBAL, "hostname", buf);

55 + netdata_log_debug(D_OPTIONS, "hostname set to '%s'", netdata_configured_hostname);

56 +}

src/libnetdata/runtime-paths/runtime-paths.h new

+39

@@ -0,0 +1,39 @@

1 +// SPDX-License-Identifier: GPL-3.0-or-later

2 +//

3 +// Process-wide configuration values resolved at netdata startup.

4 +//

5 +// libnetdata owns these globals. They start at compile-time defaults

6 +// (from build/config.h) and are re-resolved against netdata_config by

7 +// nd_runtime_paths_load_directories_from_inicfg() and

8 +// nd_runtime_paths_load_hostname_from_inicfg(), which the daemon

9 +// startup path invokes once after the config is loaded. Callers must

10 +// not assign to these variables directly; use the loaders declared

11 +// below.

12 +

13 +#ifndef NETDATA_RUNTIME_PATHS_H

14 +#define NETDATA_RUNTIME_PATHS_H

15 +

16 +extern const char *netdata_configured_hostname;

17 +extern const char *netdata_configured_user_config_dir;

18 +extern const char *netdata_configured_stock_config_dir;

19 +extern const char *netdata_configured_stock_data_dir;

20 +extern const char *netdata_configured_log_dir;

21 +extern const char *netdata_configured_primary_plugins_dir;

22 +extern const char *netdata_configured_web_dir;

23 +extern const char *netdata_configured_cache_dir;

24 +extern const char *netdata_configured_varlib_dir;

25 +extern const char *netdata_configured_cloud_dir;

26 +extern const char *netdata_configured_home_dir;

27 +extern const char *netdata_configured_host_prefix;

28 +

29 +// Re-resolve the directory globals from the loaded netdata_config.

30 +// Values absent from the config keep their compile-time defaults.

31 +// Idempotent.

32 +void nd_runtime_paths_load_directories_from_inicfg(void);

33 +

34 +// Re-resolve host_prefix and hostname from netdata_config.

35 +// host_prefix is loaded first because os_hostname uses it.

36 +// Idempotent.

37 +void nd_runtime_paths_load_hostname_from_inicfg(void);

38 +

39 +#endif // NETDATA_RUNTIME_PATHS_H

src/libnetdata/spawn_server/spawn-tester.c

-1

@@ -1,5 +1,4 @@

1 #include "libnetdata/libnetdata.h"

2 -#include "libnetdata/required_dummies.h"

3 #define ENV_VAR_KEY "SPAWN_TESTER"

4 #define ENV_VAR_VALUE "1234567890"

src/libnetdata/storage_number/tests/test_storage_number.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "../../libnetdata.h"

4 -#include "../../required_dummies.h"

4 #include <setjmp.h>

5 #include <cmocka.h>

src/libnetdata/tests/test_str2ld.c

-1

@@ -1,7 +1,6 @@

1 // SPDX-License-Identifier: GPL-3.0-or-later

3 #include "../libnetdata.h"

4 -#include "../required_dummies.h"

4 #include <setjmp.h>

5 #include <cmocka.h>

src/libnetdata/threads/threads.c

+54 -10

@@ -254,12 +254,60 @@ void netdata_threads_init_for_external_plugins(size_t stacksize) {

254 }

255

256 // ----------------------------------------------------------------------------

257 +// Thread-cleanup callback registry.

258 +//

259 +// Registration is startup-only — callers register before any daemon

260 +// thread is created. libnetdata calls every registered callback at

261 +// thread-exit time, in registration order. The startup-only invariant

262 +// lets nd_thread_run_cleanup_callbacks read the count without holding

263 +// the spinlock; the __ATOMIC_RELEASE/_ACQUIRE pair handles any late

264 +// edge.

265 +//

266 +// Ordering: all registered callbacks run before thread_cache_destroy

267 +// and worker_unregister (called below). A callback that needs to

268 +// observe thread_cache state must do so before that destroy.

269 +

270 +#define ND_THREAD_CLEANUP_MAX 16

271 +static struct {

272 + SPINLOCK spinlock;

273 + size_t count;

274 + nd_thread_cleanup_fn fns[ND_THREAD_CLEANUP_MAX];

275 +} nd_thread_cleanup_registry = { .spinlock = SPINLOCK_INITIALIZER };

276 +

277 +void nd_thread_register_cleanup(nd_thread_cleanup_fn fn) {

278 + if(!fn) return;

279 +

280 + spinlock_lock(&nd_thread_cleanup_registry.spinlock);

281 +

282 + // Idempotent: skip if this fn is already registered. Keeps the

283 + // registry small under repeated rrd_init / unittest re-entry.

284 + for(size_t i = 0; i < nd_thread_cleanup_registry.count; i++) {

285 + if(nd_thread_cleanup_registry.fns[i] == fn) {

286 + spinlock_unlock(&nd_thread_cleanup_registry.spinlock);

287 + return;

288 + }

289 + }

290 +

291 + if(nd_thread_cleanup_registry.count >= ND_THREAD_CLEANUP_MAX) {

292 + spinlock_unlock(&nd_thread_cleanup_registry.spinlock);

293 + fatal("nd_thread_register_cleanup: registry full (max %d)", ND_THREAD_CLEANUP_MAX);

294 + }

295 + nd_thread_cleanup_registry.fns[nd_thread_cleanup_registry.count] = fn;

296 + __atomic_store_n(&nd_thread_cleanup_registry.count,

297 + nd_thread_cleanup_registry.count + 1,

298 + __ATOMIC_RELEASE);

299 + spinlock_unlock(&nd_thread_cleanup_registry.spinlock);

300 +}

301

258 -void rrdset_thread_rda_free(void);

259 -void sender_thread_buffer_free(void);

260 -void query_target_free(void);

261 -void service_exits(void);

262 -void rrd_collector_finished(void);

302 +static void nd_thread_run_cleanup_callbacks(void) {

303 + size_t count = __atomic_load_n(&nd_thread_cleanup_registry.count, __ATOMIC_ACQUIRE);

304 + for(size_t i = 0; i < count; i++) {

305 + nd_thread_cleanup_fn fn = nd_thread_cleanup_registry.fns[i];

306 + if(fn) fn();

307 + }

308 +}

309 +

310 +// ----------------------------------------------------------------------------

311

312 void nd_thread_join_threads()

313 {

@@ -323,12 +371,8 @@ static void nd_thread_exit(ND_THREAD *nti) {

371 if(nd_thread_status_check(nti, NETDATA_THREAD_OPTION_DONT_LOG_CLEANUP) != NETDATA_THREAD_OPTION_DONT_LOG_CLEANUP)

372 nd_log(NDLS_DAEMON, NDLP_DEBUG, "thread with task id %d finished", nti->tid);

373

326 - rrd_collector_finished();

327 - sender_thread_buffer_free();

328 - rrdset_thread_rda_free();

329 - query_target_free();

374 + nd_thread_run_cleanup_callbacks();

375 thread_cache_destroy();

331 - service_exits();

376 worker_unregister();

377

378 nd_thread_status_set(nti, NETDATA_THREAD_STATUS_FINISHED);

src/libnetdata/threads/threads.h

@@ -82,6 +82,15 @@ void nd_thread_register_canceller(nd_thread_canceller cb, void *data);

82 void nd_thread_signal_cancel(ND_THREAD *nti);

83 bool nd_thread_signaled_to_cancel(void);

85 +// Register a process-wide cleanup callback that runs once per thread

86 +// at thread-exit time. Callbacks run in registration order, after the

87 +// libnetdata-internal lock-leak assertions and before

88 +// thread_cache_destroy / worker_unregister. Registration is intended

89 +// to be done once at process startup; the registry has a small fixed

90 +// capacity.

91 +typedef void (*nd_thread_cleanup_fn)(void);

92 +void nd_thread_register_cleanup(nd_thread_cleanup_fn fn);

93 +

94 #define ND_THREAD_TAG_MAX 15

95 void uv_thread_set_name_np(const char* name);

96 void webrtc_set_thread_name(void);

tests/profile/test-eval.c

-1

@@ -9,7 +9,6 @@

10 #include "config.h"

11 #include "libnetdata/libnetdata.h"

12 -#include "libnetdata/required_dummies.h"

12 #include "health/rrdcalc.h"

14 /*