Backed out r5921 and r5936 because they were causing
[citadel.git] / citadel / sysdep_decls.h
index 1b000f7b267205806021d1efeb1802fd4282a10c..7d02ba74b52ee7532df63bd7c0efbe2f69829e26 100644 (file)
  */
 
 
-#include <pthread.h>
 #include <stdarg.h>
 #include "sysdep.h"
+
+#ifdef HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+
+#ifdef HAVE_DB_H
+#include <db.h>
+#elif defined(HAVE_DB4_DB_H)
+#include <db4/db.h>
+#else
+#error Neither <db.h> nor <db4/db.h> was found by configure. Install db4-devel.
+#endif
+
+
+#if DB_VERSION_MAJOR < 4 || DB_VERSION_MINOR < 1
+#error Citadel requires Berkeley DB v4.1 or newer.  Please upgrade.
+#endif
+
 #include "server.h"
+#include "database.h"
 
 #if SIZEOF_SIZE_T == SIZEOF_INT 
 #define SIZE_T_FMT "%d"
@@ -58,8 +76,6 @@ extern pthread_key_t MyConKey;                        /* TSD key for MyContext() */
 extern int enable_syslog;
 
 void init_sysdep (void);
-void begin_critical_section (int which_one);
-void end_critical_section (int which_one);
 int ig_tcp_server (char *ip_addr, int port_number, int queue_len,char **errormessage);
 int ig_uds_server(char *sockpath, int queue_len, char **errormessage);
 struct CitContext *MyContext (void);
@@ -84,7 +100,6 @@ void become_session(struct CitContext *which_con);
 void InitializeMasterCC(void);
 void init_master_fdset(void);
 void create_worker(void);
-void InitialiseSemaphores(void);
 
 
 extern int num_sessions;
@@ -96,65 +111,53 @@ extern volatile int restart_server;
 extern int verbosity;
 extern int rescan[];
 
-extern struct worker_node {
-        pthread_t tid;
-        struct worker_node *next;
-} *worker_list;
 
 
 
+extern int SyslogFacility(char *name);
+extern int syslog_facility;
+
+
 /*
- * Thread stuff
+ * Typdefs and stuff to abstract pthread for Citadel
  */
-#define CTDLTHREAD_BIGSTACK    0x0001
-#define CTDLTHREAD_WORKER      0x0002
-
-void ctdl_internal_thread_gc (void);
-void ctdl_thread_internal_init(void);
-void ctdl_thread_internal_cleanup(void);
-struct CtdlThreadNode *ctdl_internal_create_thread(char *name, long flags, void *(*thread_func) (void *arg), void *args);
-
-enum CtdlThreadState {
-       CTDL_THREAD_INVALID,
-       CTDL_THREAD_VALID,
-       CTDL_THREAD_CREATE,
-       CTDL_THREAD_CANCELLED,
-       CTDL_THREAD_EXITED,
-       CTDL_THREAD_STOPPING,
-       CTDL_THREAD_STOP_REQ,   /* Do NOT put any running states before this state */
-       CTDL_THREAD_SLEEPING,
-       CTDL_THREAD_BLOCKED,
-       CTDL_THREAD_RUNNING,
-       CTDL_THREAD_LAST_STATE
-};
+#ifdef HAVE_PTHREAD_H
+
+typedef pthread_t      citthread_t;
+typedef pthread_key_t  citthread_key_t;
+typedef pthread_mutex_t        citthread_mutex_t;
+typedef pthread_cond_t citthread_cond_t;
+typedef pthread_attr_t citthread_attr_t;
+
+
+#define citthread_mutex_init   pthread_mutex_init
+#define citthread_cond_init    pthread_cond_init
+#define citthread_attr_init    pthread_attr_init
+#define citthread_mutex_trylock        pthread_mutex_trylock
+#define citthread_mutex_lock   pthread_mutex_lock
+#define citthread_mutex_unlock pthread_mutex_unlock
+#define citthread_key_create   pthread_key_create
+#define citthread_getspecific  pthread_getspecific
+#define citthread_setspecific  pthread_setspecific
+#define citthread_mutex_destroy        pthread_mutex_destroy
+#define citthread_cond_destroy pthread_cond_destroy
+#define citthread_attr_destroy pthread_attr_destroy
+
+#define citthread_kill         pthread_kill
+#define citthread_cond_signal  pthread_cond_signal
+#define citthread_cancel       pthread_cancel
+#define citthread_cond_timedwait       pthread_cond_timedwait
+#define citthread_equal                pthread_equal
+#define citthread_self         pthread_self
+#define citthread_create       pthread_create
+#define citthread_attr_setstacksize    pthread_attr_setstacksize
+#define citthread_join         pthread_join
+#define citthread_cleanup_push pthread_cleanup_push
+#define citthread_cleanup_pop  pthread_cleanup_pop
+
+
+#endif /* HAVE_PTHREAD_H */
 
-extern struct CtdlThreadNode {
-       pthread_t tid;                          /* id as returned by pthread_create() */
-       pid_t pid;                              /* pid, as best the OS will let us determine */
-       struct CitConext *Context;              /* The session context that this thread mught be working on or NULL if none */
-       long number;                            /* A unigue number for this thread (not implimented yet) */
-       int wakefd_recv;                        /* An fd that this thread can sleep on (not implimented yet) */
-       int wakefd_send;                        /* An fd that this thread can send out on (Not implimented yet) */
-       char *name;                             /* A name for this thread */
-       void *(*thread_func) (void *arg);       /* The actual function that does this threads work */
-       void *user_args;                        /* Arguments passed to this threads work function */
-       long flags;                             /* Flags that describe this thread */
-       enum CtdlThreadState state;                             /* Flag to show state of this thread */
-       pthread_mutex_t ThreadMutex;            /* A mutex to sync this thread to others if this thread allows (also used for sleeping) */
-       pthread_cond_t ThreadCond;              /* A condition variable to sync this thread with others (also used for sleeping) */
-       pthread_attr_t attr;                    /* Attributes of this thread */
-       struct timeval start_time;              /* Time this thread was started */
-       struct timeval last_state_change;       /* Time when this thread last changed state */
-       double avg_sleeping;                    /* Average sleeping time */
-       double avg_running;                     /* Average running time */
-       double avg_blocked;                     /* Average blocked time */
-       double load_avg;                        /* Load average for this thread */
-       struct CtdlThreadNode *prev;            /* Previous thread in the thread table */
-       struct CtdlThreadNode *next;            /* Next thread in the thread table */
-} *CtdlThreadList;
-
-extern int SyslogFacility(char *name);
-extern int syslog_facility;
 
 #ifdef DEBUG_MEMORY_LEAKS
 #define malloc(x) tracked_malloc(x, __FILE__, __LINE__)
@@ -169,6 +172,4 @@ char *tracked_strdup(const char *s, char *file, int line);
 void dump_heap(void);
 #endif
 
-void create_maintenance_threads(void);
-
 #endif /* SYSDEP_DECLS_H */