diff options
Diffstat (limited to 'innobase/include/os0thread.h')
| -rw-r--r-- | innobase/include/os0thread.h | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/innobase/include/os0thread.h b/innobase/include/os0thread.h index 2e4b6f0f6ee..9459750719f 100644 --- a/innobase/include/os0thread.h +++ b/innobase/include/os0thread.h @@ -12,8 +12,10 @@ Created 9/8/1995 Heikki Tuuri #include "univ.i" -/* Maximum number of threads which can be created in the program */ -#define OS_THREAD_MAX_N 1000 +/* Maximum number of threads which can be created in the program; +this is also the size of the wait slot array for MySQL threads which +can wait inside InnoDB */ +#define OS_THREAD_MAX_N 10000 /* Possible fixed priorities for threads */ #define OS_THREAD_PRIORITY_NONE 100 @@ -23,15 +25,37 @@ Created 9/8/1995 Heikki Tuuri #ifdef __WIN__ typedef void* os_thread_t; +typedef ulint os_thread_id_t; /* In Windows the thread id + is an unsigned long int */ #else typedef pthread_t os_thread_t; +typedef os_thread_t os_thread_id_t; /* In Unix we use the thread + handle itself as the id of + the thread */ #endif -typedef unsigned long int os_thread_id_t; + /* Define a function pointer type to use in a typecast */ typedef void* (*os_posix_f_t) (void*); +/******************************************************************* +Compares two thread ids for equality. */ + +ibool +os_thread_eq( +/*=========*/ + /* out: TRUE if equal */ + os_thread_id_t a, /* in: OS thread or thread id */ + os_thread_id_t b); /* in: OS thread or thread id */ +/******************************************************************** +Converts an OS thread id to a ulint. It is NOT guaranteed that the ulint is +unique for the thread though! */ +ulint +os_thread_pf( +/*=========*/ + /* out: unsigned long int */ + os_thread_id_t a); /* in: thread or thread id */ /******************************************************************** Creates a new thread of execution. The execution starts from the function given. The start function takes a void* parameter @@ -49,8 +73,8 @@ os_thread_create( #endif void* arg, /* in: argument to start function */ - os_thread_id_t* thread_id); /* out: id of created - thread */ + os_thread_id_t* thread_id); /* out: id of the created + thread */ /********************************************************************* A thread calling this function ends its execution. */ @@ -71,14 +95,6 @@ os_thread_t os_thread_get_curr(void); /*====================*/ /********************************************************************* -Converts a thread id to a ulint. */ - -ulint -os_thread_conv_id_to_ulint( -/*=======================*/ - /* out: converted to ulint */ - os_thread_id_t id); /* in: thread id */ -/********************************************************************* Waits for a thread to terminate. */ void |