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Trent Mick <trentm@activestate.com>:

Browse source 
The common technique for printing out a pointer has been to cast to a long
and use the "%lx" printf modifier. This is incorrect on Win64 where casting
to a long truncates the pointer. The "%p" formatter should be used instead.

The problem as stated by Tim:
> Unfortunately, the C committee refused to define what %p conversion "looks
> like" -- they explicitly allowed it to be implementation-defined. Older
> versions of Microsoft C even stuck a colon in the middle of the address (in
> the days of segment+offset addressing)!

The result is that the hex value of a pointer will maybe/maybe not have a 0x
prepended to it.


Notes on the patch:

There are two main classes of changes:
- in the various repr() functions that print out pointers
- debugging printf's in the various thread_*.h files (these are why the
patch is large)


Closes SourceForge patch #100505.
This commit is contained in:
Fred Drake 2000-06-30 15:01:00 +00:00
parent d49e5b4667
commit a44d353e2b
22 changed files with 153 additions and 153 deletions
Download patch file Download diff file Expand all files Collapse all files

20
Python/thread_pthread.h
View file

@ -272,7 +272,7 @@ PyThread_type_lock PyThread_allocate_lock _P0()
}
}
dprintf(("PyThread_allocate_lock() -> %lx\n", (long)lock));
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
@ -281,7 +281,7 @@ void PyThread_free_lock _P1(lock, PyThread_type_lock lock)
pthread_lock *thelock = (pthread_lock *)lock;
int status, error = 0;
dprintf(("PyThread_free_lock(%lx) called\n", (long)lock));
dprintf(("PyThread_free_lock(%p) called\n", lock));
status = pthread_mutex_destroy( &thelock->mut );
CHECK_STATUS("pthread_mutex_destroy");
@ -298,7 +298,7 @@ int PyThread_acquire_lock _P2(lock, PyThread_type_lock lock, waitflag, int waitf
pthread_lock *thelock = (pthread_lock *)lock;
int status, error = 0;
dprintf(("PyThread_acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
status = pthread_mutex_lock( &thelock->mut );
CHECK_STATUS("pthread_mutex_lock[1]");
@ -325,7 +325,7 @@ int PyThread_acquire_lock _P2(lock, PyThread_type_lock lock, waitflag, int waitf
success = 1;
}
if (error) success = 0;
dprintf(("PyThread_acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
return success;
}
@ -334,7 +334,7 @@ void PyThread_release_lock _P1(lock, PyThread_type_lock lock)
pthread_lock *thelock = (pthread_lock *)lock;
int status, error = 0;
dprintf(("PyThread_release_lock(%lx) called\n", (long)lock));
dprintf(("PyThread_release_lock(%p) called\n", lock));
status = pthread_mutex_lock( &thelock->mut );
CHECK_STATUS("pthread_mutex_lock[3]");
@ -382,7 +382,7 @@ PyThread_type_sema PyThread_allocate_sema _P1(value, int value)
sema = NULL;
}
}
dprintf(("PyThread_allocate_sema() -> %lx\n", (long) sema));
dprintf(("PyThread_allocate_sema() -> %p\n", sema));
return (PyThread_type_sema) sema;
}
@ -391,7 +391,7 @@ void PyThread_free_sema _P1(sema, PyThread_type_sema sema)
int status, error = 0;
struct semaphore *thesema = (struct semaphore *) sema;
dprintf(("PyThread_free_sema(%lx) called\n", (long) sema));
dprintf(("PyThread_free_sema(%p) called\n", sema));
status = pthread_cond_destroy(&thesema->cond);
CHECK_STATUS("pthread_cond_destroy");
status = pthread_mutex_destroy(&thesema->mutex);
@ -404,7 +404,7 @@ int PyThread_down_sema _P2(sema, PyThread_type_sema sema, waitflag, int waitflag
int status, error = 0, success;
struct semaphore *thesema = (struct semaphore *) sema;
dprintf(("PyThread_down_sema(%lx, %d) called\n", (long) sema, waitflag));
dprintf(("PyThread_down_sema(%p, %d) called\n", sema, waitflag));
status = pthread_mutex_lock(&thesema->mutex);
CHECK_STATUS("pthread_mutex_lock");
if (waitflag) {
@ -424,7 +424,7 @@ int PyThread_down_sema _P2(sema, PyThread_type_sema sema, waitflag, int waitflag
success = 0;
status = pthread_mutex_unlock(&thesema->mutex);
CHECK_STATUS("pthread_mutex_unlock");
dprintf(("PyThread_down_sema(%lx) return\n", (long) sema));
dprintf(("PyThread_down_sema(%p) return\n", sema));
return success;
}
@ -433,7 +433,7 @@ void PyThread_up_sema _P1(sema, PyThread_type_sema sema)
int status, error = 0;
struct semaphore *thesema = (struct semaphore *) sema;
dprintf(("PyThread_up_sema(%lx)\n", (long) sema));
dprintf(("PyThread_up_sema(%p)\n", sema));
status = pthread_mutex_lock(&thesema->mutex);
CHECK_STATUS("pthread_mutex_lock");
thesema->value++;