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authorPaul Buetow <paul@buetow.org>2013-04-06 13:14:44 +0200
committerPaul Buetow <paul@buetow.org>2013-04-06 13:14:44 +0200
commitca28c0e618890330d429c0dc12429255b20f0c90 (patch)
treeecc02da0184cf4e8bdba94dcdd831abdd1e51b3c /pool.cpp
parentb3a99e6e15af3be25394e66d1138bb2682f565c3 (diff)
tagging ychat-0.5.0ychat-0.5.0
Diffstat (limited to 'pool.cpp')
-rwxr-xr-xpool.cpp363
1 files changed, 158 insertions, 205 deletions
diff --git a/pool.cpp b/pool.cpp
index b6e5dec..a8c1556 100755
--- a/pool.cpp
+++ b/pool.cpp
@@ -8,254 +8,207 @@
#include "s_conf.h"
#include "s_mutx.h"
#include "s_tool.h"
-#include "s_ncur.h"
-#include "s_sock.h"
#include "thrd.h"
using namespace std;
pool::pool()
{
- i_thrd_pool_size = s_tool::string2int( s_conf::get
- ().get_val( "THRDPOOL" ) );
- i_thrd_pool_queue = s_tool::string2int( s_conf::get
- ().get_val( "THRDQUEU" ) );
- tpool_init( &thread_pool, i_thrd_pool_size, i_thrd_pool_queue, 0 );
+ i_thrd_pool_size = s_tool::string2int( s_conf::get().get_val( "THRDPOOL" ) );
+ i_thrd_pool_queue = s_tool::string2int( s_conf::get().get_val( "THRDQUEU" ) );
+
+ tpool_init( &thread_pool, i_thrd_pool_size, i_thrd_pool_queue, 0 );
}
pool::~pool()
{
- // tpool_destroy ...
+ // tpool_destroy ...
}
void
pool::tpool_init( tpool_t *tpoolp, int num_worker_threads, int max_queue_size, int do_not_block_when_full )
{
- int i, rtn;
- tpool_t tpool;
-
- // allocate a pool data structure
- if (( tpool = (tpool_t) malloc( sizeof( struct tpool ) ) ) == NULL )
- {
-#ifdef NCURSES
- s_ncur::get
- ().print( POOLERR );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << POOLERR << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
-
- // initialize th fields
- tpool->num_threads = num_worker_threads;
- tpool->max_queue_size = max_queue_size;
- tpool->do_not_block_when_full = do_not_block_when_full;
-
- if ( ( tpool->threads = (pthread_t*) malloc( sizeof( pthread_t ) *num_worker_threads ) ) == NULL )
- {
-#ifdef NCURSES
- s_ncur::get
- ().print( POOLERR );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << POOLERR << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
-
- tpool->cur_queue_size = 0;
- tpool->queue_head = NULL;
- tpool->queue_tail = NULL;
- tpool->queue_closed = 0;
- tpool->shutdown = 0;
-
- if ( ( rtn = pthread_mutex_init( &(tpool->queue_lock), NULL ) ) != 0 )
- {
- string s_err( "pthread_mutex_init " );
- s_err.append( strerror( rtn ) );
-#ifdef NCURSES
-
- s_ncur::get
- ().print( s_err );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << s_err << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
- else if ( ( rtn = pthread_cond_init( &(tpool->queue_not_empty), NULL ) ) != 0 )
- {
- string s_err( "pthread_mutex_init " );
- s_err.append( strerror( rtn ) );
-#ifdef NCURSES
-
- s_ncur::get
- ().print( s_err );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << s_err << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
- else if ( ( rtn = pthread_cond_init( &(tpool->queue_not_full), NULL ) ) != 0 )
- {
- string s_err( "pthread_mutex_init " );
- s_err.append( strerror( rtn ) );
-#ifdef NCURSES
-
- s_ncur::get
- ().print( s_err );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << s_err << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
- else if ( ( rtn = pthread_cond_init( &(tpool->queue_empty), NULL ) ) != 0 )
- {
- string s_err( "pthread_mutex_init " );
- s_err.append( strerror( rtn ) );
-#ifdef NCURSES
-
- s_ncur::get
- ().print( s_err );
-#endif
-
- pthread_mutex_lock ( &s_mutx::get
- ().mut_stdout );
- cerr << s_err << endl;
- pthread_mutex_unlock( &s_mutx::get
- ().mut_stdout );
- exit(-1);
- }
- // create threads
- for ( i = 0; i < num_worker_threads; i++ )
- pthread_create( &(tpool->threads[i]) , NULL, tpool_thread, (void*)tpool );
-
- *tpoolp = tpool;
+ int i, rtn;
+ tpool_t tpool;
+
+ // allocate a pool data structure
+ if (( tpool = (tpool_t) malloc( sizeof( struct tpool ) ) ) == NULL )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "malloc" << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+
+ // initialize th fields
+ tpool->num_threads = num_worker_threads;
+ tpool->max_queue_size = max_queue_size;
+ tpool->do_not_block_when_full = do_not_block_when_full;
+
+ if ( ( tpool->threads = (pthread_t*) malloc( sizeof( pthread_t ) *num_worker_threads ) ) == NULL )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "malloc" << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+
+ tpool->cur_queue_size = 0;
+ tpool->queue_head = NULL;
+ tpool->queue_tail = NULL;
+ tpool->queue_closed = 0;
+ tpool->shutdown = 0;
+
+ if ( ( rtn = pthread_mutex_init( &(tpool->queue_lock), NULL ) ) != 0 )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "pthread_mutex_init " << strerror( rtn ) << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+
+ else if ( ( rtn = pthread_cond_init( &(tpool->queue_not_empty), NULL ) ) != 0 )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "pthread_cond_init " << strerror( rtn ) << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+
+ else if ( ( rtn = pthread_cond_init( &(tpool->queue_not_full), NULL ) ) != 0 )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "pthread_cond_init " << strerror( rtn ) << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+
+ else if ( ( rtn = pthread_cond_init( &(tpool->queue_empty), NULL ) ) != 0 )
+ {
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cerr << "pthread_cond_init " << strerror( rtn ) << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+ exit(-1);
+ }
+ // create threads
+ for ( i = 0; i < num_worker_threads; i++ )
+ pthread_create( &(tpool->threads[i]) , NULL, tpool_thread, (void*)tpool );
+
+ *tpoolp = tpool;
}
void*
pool::tpool_thread( void* arg )
{
- tpool_t tpool = (tpool_t) arg;
- tpool_work_t *my_workp;
+ tpool_t tpool = (tpool_t) arg;
+ tpool_work_t *my_workp;
- while( true )
- {
- pthread_mutex_lock( &(tpool->queue_lock) );
+ while( true )
+ {
+ pthread_mutex_lock( &(tpool->queue_lock) );
- while ( (tpool->cur_queue_size == 0) && (!tpool->shutdown) )
- pthread_cond_wait( &(tpool->queue_not_empty), &(tpool->queue_lock) );
+ while ( (tpool->cur_queue_size == 0) && (!tpool->shutdown) )
+ pthread_cond_wait( &(tpool->queue_not_empty), &(tpool->queue_lock) );
- if (tpool->shutdown)
- {
- pthread_mutex_unlock( &(tpool->queue_lock) );
- pthread_exit( NULL );
- }
+ if (tpool->shutdown)
+ {
+ pthread_mutex_unlock( &(tpool->queue_lock) );
+ pthread_exit( NULL );
+ }
- my_workp = tpool->queue_head;
- tpool->cur_queue_size--;
+ my_workp = tpool->queue_head;
+ tpool->cur_queue_size--;
- if ( tpool->cur_queue_size == 0)
- tpool->queue_head = tpool->queue_tail = NULL;
+ if ( tpool->cur_queue_size == 0)
+ tpool->queue_head = tpool->queue_tail = NULL;
- else
- tpool->queue_head = my_workp->next;
+ else
+ tpool->queue_head = my_workp->next;
- if ( ( ! tpool->do_not_block_when_full ) &&
- ( tpool->cur_queue_size == ( tpool->max_queue_size - 1 ) ) )
- pthread_cond_signal( &(tpool->queue_not_full) );
+ if ( ( ! tpool->do_not_block_when_full ) &&
+ ( tpool->cur_queue_size == ( tpool->max_queue_size - 1 ) ) )
+ pthread_cond_signal( &(tpool->queue_not_full) );
- if ( tpool->cur_queue_size == 0 )
- pthread_cond_signal( &(tpool->queue_empty) );
+ if ( tpool->cur_queue_size == 0 )
+ pthread_cond_signal( &(tpool->queue_empty) );
- pthread_mutex_unlock( &(tpool->queue_lock) );
- (*(my_workp->routine))(my_workp->arg);
- free((void*)my_workp);
- }
+ pthread_mutex_unlock( &(tpool->queue_lock) );
+ (*(my_workp->routine))(my_workp->arg);
+ free((void*)my_workp);
+ }
}
void pool::run_func( void *v_pointer )
{
- s_sock::get
- ().increase_num_threads();
+#ifdef VERBOSE
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cout << THREADS << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+#endif
- // recasting the client thread object.
- thrd *t = (thrd*) v_pointer;
+ // recasting the client thread object.
+ thrd *t = (thrd*) v_pointer;
- // start parsing the client request and sending response's back.
- t-> run ();
+ // start parsing the client request and sending response's back.
+ t-> run ();
- // close the client socket.
- t->~thrd();
+ // close the client socket.
+ t->~thrd();
- s_sock::get
- ().decrease_num_threads();
+ free(v_pointer);
- free(v_pointer);
+#ifdef VERBOSE
+ pthread_mutex_lock ( &s_mutx::get().mut_stdout );
+ cout << THREADE << endl;
+ pthread_mutex_unlock( &s_mutx::get().mut_stdout );
+#endif
}
int
pool::tpool_add_work( tpool_t tpool, void(*routine)(void*), void* arg ) ///
{
- tpool_work_t *workp;
- pthread_mutex_lock( &(tpool->queue_lock) );
-
- if( ( tpool->cur_queue_size == tpool->max_queue_size ) &&
- tpool->do_not_block_when_full )
- {
- pthread_mutex_unlock( &(tpool->queue_lock) );
- return -1;
- }
-
- while( ( tpool->cur_queue_size == tpool->max_queue_size ) &&
- ( ! ( tpool->shutdown || tpool->queue_closed ) ) )
- pthread_cond_wait( &(tpool->queue_not_full), &(tpool->queue_lock) );
-
- if( tpool->shutdown || tpool->queue_closed )
- {
- pthread_mutex_unlock( &tpool->queue_lock );
- return -1;
- }
-
- // allocate work structure:
- workp = (tpool_work_t*) malloc( sizeof( tpool_work_t ) );
-
- workp->routine = routine;
- workp->arg = arg;
- workp->next = NULL;
-
- if( tpool->cur_queue_size == 0 )
- {
- tpool->queue_tail = tpool->queue_head = workp;
- }
- else
- {
- (tpool->queue_tail)->next = workp;
- tpool->queue_tail = workp;
- }
-
- pthread_cond_signal( &tpool->queue_not_empty );
- tpool->cur_queue_size++;
- pthread_mutex_unlock( &(tpool->queue_lock) );
- return 1;
+ tpool_work_t *workp;
+ pthread_mutex_lock( &(tpool->queue_lock) );
+
+ if( ( tpool->cur_queue_size == tpool->max_queue_size ) &&
+ tpool->do_not_block_when_full )
+ {
+ pthread_mutex_unlock( &(tpool->queue_lock) );
+ return -1;
+ }
+
+ while( ( tpool->cur_queue_size == tpool->max_queue_size ) &&
+ ( ! ( tpool->shutdown || tpool->queue_closed ) ) )
+ pthread_cond_wait( &(tpool->queue_not_full), &(tpool->queue_lock) );
+
+ if( tpool->shutdown || tpool->queue_closed )
+ {
+ pthread_mutex_unlock( &tpool->queue_lock );
+ return -1;
+ }
+
+ // allocate work structure:
+ workp = (tpool_work_t*) malloc( sizeof( tpool_work_t ) );
+
+ workp->routine = routine;
+ workp->arg = arg;
+ workp->next = NULL;
+
+ if( tpool->cur_queue_size == 0 )
+ {
+ tpool->queue_tail = tpool->queue_head = workp;
+ }
+
+ else
+ {
+ tpool->queue_tail->next = workp;
+ tpool->queue_tail = workp;
+ }
+
+ tpool->cur_queue_size++;
+ pthread_cond_signal( &(tpool->queue_not_empty) );
+ pthread_mutex_unlock( &(tpool->queue_lock) );
+ return 1;
}
#endif