-/*
- * Thread handling stuff for Citadel server
- *
- * Copyright (c) 1987-2021 by the citadel.org team
- *
- * This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 3.
- */
+// Thread handling stuff for the Citadel server
+//
+// Copyright (c) 1987-2023 by the citadel.org team
+//
+// This program is open source software. Use, duplication, or disclosure
+// is subject to the terms of the GNU General Public License, version 3.
#include <errno.h>
#include <stdio.h>
#include "context.h"
#include "threads.h"
-int num_workers = 0; /* Current number of worker threads */
-int active_workers = 0; /* Number of ACTIVE worker threads */
+int num_workers = 0; // Current number of worker threads
+int active_workers = 0; // Number of ACTIVE worker threads
pthread_key_t ThreadKey;
-pthread_mutex_t Critters[MAX_SEMAPHORES]; /* Things needing locking */
+pthread_mutex_t Critters[MAX_SEMAPHORES]; // Things needing locking
struct thread_tsd masterTSD;
-int server_shutting_down = 0; /* set to nonzero during shutdown */
+int server_shutting_down = 0; // set to nonzero during shutdown
pthread_mutex_t ThreadCountMutex;
-void InitializeSemaphores(void)
-{
+void InitializeSemaphores(void) {
int i;
- /* Set up a bunch of semaphores to be used for critical sections */
+ // Set up a bunch of semaphores to be used for critical sections
for (i=0; i<MAX_SEMAPHORES; ++i) {
pthread_mutex_init(&Critters[i], NULL);
}
}
-/*
- * Obtain a semaphore lock to begin a critical section.
- * but only if no one else has one
- */
-int try_critical_section(int which_one)
-{
- /* For all types of critical sections except those listed here,
- * ensure nobody ever tries to do a critical section within a
- * transaction; this could lead to deadlock.
- */
+// Obtain a semaphore lock to begin a critical section, but only if no one else has one
+int try_critical_section(int which_one) {
+ // For all types of critical sections except those listed here,
+ // ensure nobody ever tries to do a critical section within a
+ // transaction; this could lead to deadlock.
if ( (which_one != S_FLOORCACHE)
&& (which_one != S_NETCONFIGS)
) {
}
-/*
- * Obtain a semaphore lock to begin a critical section.
- */
-void begin_critical_section(int which_one)
-{
- /* For all types of critical sections except those listed here,
- * ensure nobody ever tries to do a critical section within a
- * transaction; this could lead to deadlock.
- */
+// Obtain a semaphore lock to begin a critical section.
+void begin_critical_section(int which_one) {
+ // For all types of critical sections except those listed here,
+ // ensure nobody ever tries to do a critical section within a
+ // transaction; this could lead to deadlock.
if ( (which_one != S_FLOORCACHE)
&& (which_one != S_NETCONFIGS)
) {
}
-/*
- * Release a semaphore lock to end a critical section.
- */
-void end_critical_section(int which_one)
-{
+// Release a semaphore lock to end a critical section.
+void end_critical_section(int which_one) {
pthread_mutex_unlock(&Critters[which_one]);
}
-/*
- * Return a pointer to our thread-specific (not session-specific) data.
- */
+// Return a pointer to our thread-specific (not session-specific) data.
struct thread_tsd *MyThread(void) {
struct thread_tsd *c = (struct thread_tsd *) pthread_getspecific(ThreadKey) ;
if (!c) {
}
-/*
- * Called by CtdlThreadCreate()
- * We have to pass through here before starting our thread in order to create a set of data
- * that is thread-specific rather than session-specific.
- */
-void *CTC_backend(void *supplied_start_routine)
-{
+// Called by CtdlThreadCreate()
+// We have to pass through here before starting our thread in order to create a set of data
+// that is thread-specific rather than session-specific.
+void *CTC_backend(void *supplied_start_routine) {
struct thread_tsd *mytsd;
void *(*start_routine)(void*) = supplied_start_routine;
}
-/*
- * Function to create a thread.
- */
-void CtdlThreadCreate(void *(*start_routine)(void*))
-{
+// Function to create a thread.
+void CtdlThreadCreate(void *(*start_routine)(void*)) {
pthread_t thread;
pthread_attr_t attr;
int ret = 0;
}
-/*
- * Initialize the thread system
- */
+// Initialize the thread system
void go_threading(void) {
pthread_mutex_init(&ThreadCountMutex, NULL);
- /* Second call to module init functions now that threading is up */
+ // Second call to module init functions now that threading is up
initialize_modules(1);
- /* Begin with one worker thread. We will expand the pool if necessary */
+ // Begin with one worker thread. We will expand the pool if necessary
CtdlThreadCreate(worker_thread);
- /* The supervisor thread monitors worker threads and spawns more of them if it finds that
- * they are all in use.
- */
+ // The supervisor thread monitors worker threads and spawns more of them if it finds that they are all in use.
while (!server_shutting_down) {
if ((active_workers == num_workers) && (num_workers < CtdlGetConfigInt("c_max_workers"))) {
CtdlThreadCreate(worker_thread);
usleep(1000000);
}
- /* When we get to this point we are getting ready to shut down our Citadel server */
- terminate_all_sessions(); /* close all client sockets */
- CtdlShutdownServiceHooks(); /* close all listener sockets to prevent new connections */
- PerformSessionHooks(EVT_SHUTDOWN); /* run any registered shutdown hooks */
+ // When we get to this point we are getting ready to shut down our Citadel server
+ terminate_all_sessions(); // close all client sockets
+ CtdlShutdownServiceHooks(); // close all listener sockets to prevent new connections
+ PerformSessionHooks(EVT_SHUTDOWN); // run any registered shutdown hooks
- /* We used to wait for all threads to exit. Fuck that. The only thing important is that the databases are
- * cleanly unmounted. After that, exit the whole program.
- */
+ // We used to wait for all threads to exit. Fuck that. The only thing important is that the databases are
+ // cleanly unmounted. After that, exit the whole program.
}
projects / citadel.git / commitdiff