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5.1 repository of sergeyv. When sergeyv does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html
ChangeSet
1.2235 06/03/29 23:32:06 SergeyV@selena. +1 -0
Second iteration on mysqlslap locks. Redone to use semaphores,
instead of pthread_cond. opt_slave is not covered yet, since there
is no proper implementation of global (system wide) semaphores on win32.
client/mysqlslap.c
1.26 06/03/29 23:31:22 SergeyV@selena. +80 -42
Second iteration on mysqlslap locks. Redone to use semaphores,
instead of pthread_cond. opt_slave is not covered yet, since there
is no proper implementation of global (system wide) semaphores on win32.
# This is a BitKeeper patch. What follows are the unified diffs for the
# set of deltas contained in the patch. The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User: SergeyV
# Host: selena.
# Root: H:/MYSQL/src/$00002-mysql-5.1
--- 1.25/client/mysqlslap.c 2006-03-10 19:54:05 +03:00
+++ 1.26/client/mysqlslap.c 2006-03-29 23:31:22 +04:00
@@ -78,6 +78,7 @@
#include "client_priv.h"
#ifdef HAVE_LIBPTHREAD
#include <my_pthread.h>
+#include <my_semaphore.h>
#endif
#include <my_sys.h>
#include <m_string.h>
@@ -151,6 +152,11 @@
static const char *load_default_groups[]= { "mysqlslap","client",0 };
+#ifdef HAVE_LIBPTHREAD
+sem_t myslapsemtrd;
+sem_t myslapsemmon;
+#endif
+
typedef struct statement statement;
struct statement {
@@ -361,7 +367,6 @@
if (!opt_only_print)
mysql_close(&mysql); /* Close & free connection */
-
/* Remove lock file */
my_delete(lock_file_str, MYF(0));
@@ -979,22 +984,15 @@
con.limit= limit;
con.thread= opt_use_threads ? 1 :0;
- lock_file= my_open(lock_file_str, O_CREAT|O_WRONLY|O_TRUNC, MYF(0));
-
- if (!opt_slave)
- if (my_lock(lock_file, F_WRLCK, 0, F_TO_EOF, MYF(0)))
- {
- fprintf(stderr,"%s: Could not get lockfile\n",
- my_progname);
- exit(0);
- }
-
#ifdef HAVE_LIBPTHREAD
if (opt_use_threads)
{
- pthread_t mainthread; /* Thread descriptor */
+ pthread_t mainthread; /* Thread descriptor */
pthread_attr_t attr; /* Thread attributes */
+ sem_init(&myslapsemmon, 0, 0);
+ sem_init(&myslapsemtrd, 0, 0);
+
for (x= 0; x < concur; x++)
{
pthread_attr_init(&attr);
@@ -1010,6 +1008,10 @@
exit(0);
}
}
+
+ for (x= 0; x < concur; x++)
+ sem_wait(&myslapsemtrd);
+ sem_post_multiple(&myslapsemmon, concur);
}
#endif
#ifndef __WIN__
@@ -1017,6 +1019,16 @@
else
#endif
{
+ lock_file= my_open(lock_file_str, O_CREAT|O_WRONLY|O_TRUNC, MYF(0));
+
+ if (!opt_slave)
+ if (my_lock(lock_file, F_WRLCK, 0, F_TO_EOF, MYF(0)))
+ {
+ fprintf(stderr,"%s: Could not get lockfile\n",
+ my_progname);
+ exit(0);
+ }
+
fflush(NULL);
for (x= 0; x < concur; x++)
{
@@ -1054,31 +1066,26 @@
break;
}
}
+
+ /* Lets release use some clients! */
+ if (!opt_slave)
+ my_lock(lock_file, F_UNLCK, 0, F_TO_EOF, MYF(0));
}
#endif
- /* Lets release use some clients! */
- if (!opt_slave)
- my_lock(lock_file, F_UNLCK, 0, F_TO_EOF, MYF(0));
-
gettimeofday(&start_time, NULL);
- /*
- We look to grab a write lock at this point. Once we get it we know that
- all clients have completed their work.
- */
+#ifdef HAVE_LIBPTHREAD
if (opt_use_threads)
{
- if (my_lock(lock_file, F_WRLCK, 0, F_TO_EOF, MYF(0)))
- {
- fprintf(stderr,"%s: Could not get lockfile\n",
- my_progname);
- exit(0);
- }
- my_lock(lock_file, F_UNLCK, 0, F_TO_EOF, MYF(0));
+ for (x= 0; x < concur; x++)
+ sem_wait(&myslapsemtrd);
}
+#endif
#ifndef __WIN__
+#ifdef HAVE_LIBPTHREAD
else
+#endif
{
WAIT:
while (x--)
@@ -1090,11 +1097,12 @@
printf("%s: Child %d died with the status %d\n",
my_progname, pid, status);
}
+
+ my_close(lock_file, MYF(0));
}
#endif
- gettimeofday(&end_time, NULL);
- my_close(lock_file, MYF(0));
+ gettimeofday(&end_time, NULL);
sptr->timing= timedif(end_time, start_time);
sptr->users= concur;
@@ -1123,15 +1131,31 @@
goto end;
DBUG_PRINT("info", ("trying to connect to host %s as user %s", host, user));
- lock_file= my_open(lock_file_str, O_RDWR, MYF(0));
- my_lock(lock_file, F_RDLCK, 0, F_TO_EOF, MYF(0));
- if (!opt_only_print)
- {
- if (!(mysql= mysql_real_connect(mysql, host, user, opt_password,
- create_schema_string,
- opt_mysql_port,
+
+#ifdef HAVE_LIBPTHREAD
+ if (opt_use_threads)
+ {
+ sem_post(&myslapsemtrd);
+ sem_wait(&myslapsemmon);
+ }
+#endif
+#ifndef __WIN__
+#ifdef HAVE_LIBPTHREAD
+ else
+#endif
+ {
+ lock_file= my_open(lock_file_str, O_RDWR, MYF(0));
+ my_lock(lock_file, F_RDLCK, 0, F_TO_EOF, MYF(0));
+ }
+#endif
+
+ if (!opt_only_print)
+ {
+ if (!mysql_real_connect(mysql, host, user, opt_password,
+ create_schema_string,
+ opt_mysql_port,
opt_mysql_unix_port,
- 0)))
+ 0))
{
fprintf(stderr,"%s: %s\n",my_progname,mysql_error(mysql));
goto end;
@@ -1139,12 +1163,12 @@
}
DBUG_PRINT("info", ("connected."));
- queries= 0;
+ queries= 0;
limit_not_met:
for (ptr= con->stmt; ptr && ptr->length; ptr= ptr->next)
{
- if (opt_only_print)
+ if (opt_only_print)
{
printf("%.*s;\n", (uint)ptr->length, ptr->string);
}
@@ -1175,17 +1199,31 @@
end:
- if (lock_file != -1)
+#ifdef HAVE_LIBPTHREAD
+ if (opt_use_threads)
{
- my_lock(lock_file, F_UNLCK, 0, F_TO_EOF, MYF(0));
- my_close(lock_file, MYF(0));
+ sem_post(&myslapsemtrd);
+ }
+#endif
+#ifndef __WIN__
+#ifdef HAVE_LIBPTHREAD
+ else
+#endif
+ {
+ if (lock_file != -1)
+ {
+ my_lock(lock_file, F_UNLCK, 0, F_TO_EOF, MYF(0));
+ my_close(lock_file, MYF(0));
+ }
}
+#endif
if (!opt_only_print)
mysql_close(mysql);
if (con->thread)
my_thread_end();
+
DBUG_RETURN(0);
}
| Thread |
|---|
| • bk commit into 5.1 tree (SergeyV:1.2235) | sergeyv | 29 Mar |
