Cleanup: apply `include-what-you-use` guideline for `size_t`

[lttng-ust.git] / liblttng-ust / lttng-ust-comm.c

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 47ba36e5c9f1d9f1871c267469049708a7dd1e1e..838bf08bfea43d609fb749814ab2ae68e758b468 100644 (file)
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -21,6 +21,7 @@
 
 #define _LGPL_SOURCE
 #define _GNU_SOURCE
+#include <stddef.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/mman.h>
@@ -263,6 +264,8 @@ struct sock_info {
        /* Keep track of lazy state dump not performed yet. */
        int statedump_pending;
        int initial_statedump_done;
+       /* Keep procname for statedump */
+       char procname[LTTNG_UST_PROCNAME_LEN];
 };
 
 /* Socket from app (connect) to session daemon (listen) for communication */
@@ -283,6 +286,7 @@ struct sock_info global_apps = {
 
        .statedump_pending = 0,
        .initial_statedump_done = 0,
+       .procname[0] = '\0'
 };
 
 /* TODO: allow global_apps_sock_path override */
@@ -300,6 +304,7 @@ struct sock_info local_apps = {
 
        .statedump_pending = 0,
        .initial_statedump_done = 0,
+       .procname[0] = '\0'
 };
 
 static int wait_poll_fallback;
@@ -423,7 +428,12 @@ void lttng_ust_fixup_tls(void)
        lttng_fixup_nest_count_tls();
        lttng_fixup_procname_tls();
        lttng_fixup_ust_mutex_nest_tls();
+       lttng_ust_fixup_perf_counter_tls();
        lttng_ust_fixup_fd_tracker_tls();
+       lttng_fixup_cgroup_ns_tls();
+       lttng_fixup_ipc_ns_tls();
+       lttng_fixup_net_ns_tls();
+       lttng_fixup_uts_ns_tls();
 }
 
 int lttng_get_notify_socket(void *owner)
@@ -433,6 +443,15 @@ int lttng_get_notify_socket(void *owner)
        return info->notify_socket;
 }
 
+
+LTTNG_HIDDEN
+char* lttng_ust_sockinfo_get_procname(void *owner)
+{
+       struct sock_info *info = owner;
+
+       return info->procname;
+}
+
 static
 void print_cmd(int cmd, int handle)
 {
@@ -462,6 +481,7 @@ int setup_global_apps(void)
        }
 
        global_apps.allowed = 1;
+       lttng_ust_getprocname(global_apps.procname);
 error:
        return ret;
 }
@@ -506,6 +526,8 @@ int setup_local_apps(void)
                ret = -EIO;
                goto end;
        }
+
+       lttng_ust_getprocname(local_apps.procname);
 end:
        return ret;
 }
@@ -2033,6 +2055,34 @@ void __attribute__((destructor)) lttng_ust_exit(void)
        lttng_ust_cleanup(1);
 }
 
+static
+void ust_context_ns_reset(void)
+{
+       lttng_context_pid_ns_reset();
+       lttng_context_cgroup_ns_reset();
+       lttng_context_ipc_ns_reset();
+       lttng_context_mnt_ns_reset();
+       lttng_context_net_ns_reset();
+       lttng_context_user_ns_reset();
+       lttng_context_uts_ns_reset();
+}
+
+static
+void ust_context_vuids_reset(void)
+{
+       lttng_context_vuid_reset();
+       lttng_context_veuid_reset();
+       lttng_context_vsuid_reset();
+}
+
+static
+void ust_context_vgids_reset(void)
+{
+       lttng_context_vgid_reset();
+       lttng_context_vegid_reset();
+       lttng_context_vsgid_reset();
+}
+
 /*
  * We exclude the worker threads across fork and clone (except
  * CLONE_VM), because these system calls only keep the forking thread
@@ -2068,6 +2118,7 @@ void ust_before_fork(sigset_t *save_sigset)
        ust_lock_nocheck();
        urcu_bp_before_fork();
        lttng_ust_lock_fd_tracker();
+       lttng_perf_lock();
 }
 
 static void ust_after_fork_common(sigset_t *restore_sigset)
@@ -2075,6 +2126,7 @@ static void ust_after_fork_common(sigset_t *restore_sigset)
        int ret;
 
        DBG("process %d", getpid());
+       lttng_perf_unlock();
        lttng_ust_unlock_fd_tracker();
        ust_unlock();
 
@@ -2113,6 +2165,9 @@ void ust_after_fork_child(sigset_t *restore_sigset)
        lttng_context_vpid_reset();
        lttng_context_vtid_reset();
        lttng_context_procname_reset();
+       ust_context_ns_reset();
+       ust_context_vuids_reset();
+       ust_context_vgids_reset();
        DBG("process %d", getpid());
        /* Release urcu mutexes */
        urcu_bp_after_fork_child();
@@ -2122,6 +2177,60 @@ void ust_after_fork_child(sigset_t *restore_sigset)
        lttng_ust_init();
 }
 
+void ust_after_setns(void)
+{
+       ust_context_ns_reset();
+       ust_context_vuids_reset();
+       ust_context_vgids_reset();
+}
+
+void ust_after_unshare(void)
+{
+       ust_context_ns_reset();
+       ust_context_vuids_reset();
+       ust_context_vgids_reset();
+}
+
+void ust_after_setuid(void)
+{
+       ust_context_vuids_reset();
+}
+
+void ust_after_seteuid(void)
+{
+       ust_context_vuids_reset();
+}
+
+void ust_after_setreuid(void)
+{
+       ust_context_vuids_reset();
+}
+
+void ust_after_setresuid(void)
+{
+       ust_context_vuids_reset();
+}
+
+void ust_after_setgid(void)
+{
+       ust_context_vgids_reset();
+}
+
+void ust_after_setegid(void)
+{
+       ust_context_vgids_reset();
+}
+
+void ust_after_setregid(void)
+{
+       ust_context_vgids_reset();
+}
+
+void ust_after_setresgid(void)
+{
+       ust_context_vgids_reset();
+}
+
 void lttng_ust_sockinfo_session_enabled(void *owner)
 {
        struct sock_info *sock_info = owner;