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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/branches/freeze-1_6_0@16165 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-Macdonald 2003-03-13 19:31:08 +00:00
parent e4c2b96604
commit 23c248680a
1 changed files with 53 additions and 20 deletions
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73
Source/NSData.m
View file

@ -2814,7 +2814,7 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
if (shmid == -1) /* Created memory? */
{
NSLog(@"[-initWithBytes:length:] shared mem get failed for %u - %s",
bufferSize, GSLastErrorStr(errno));
bufferSize, GSLastErrorStr(errno));
RELEASE(self);
self = [dataMalloc allocWithZone: NSDefaultMallocZone()];
return [self initWithBytes: aBuffer length: bufferSize];
@ -3477,12 +3477,23 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
struct shmid_ds buf;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
NSLog(@"[NSMutableDataShared -dealloc] shared memory control failed - %s", GSLastErrorStr(errno));
{
NSLog(@"[NSMutableDataShared -dealloc] shared memory "
@"control failed - %s", GSLastErrorStr(errno));
}
else if (buf.shm_nattch == 1)
if (shmctl(shmid, IPC_RMID, &buf) < 0) /* Mark for deletion. */
NSLog(@"[NSMutableDataShared -dealloc] shared memory delete failed - %s", GSLastErrorStr(errno));
{
if (shmctl(shmid, IPC_RMID, &buf) < 0) /* Mark for deletion. */
{
NSLog(@"[NSMutableDataShared -dealloc] shared memory "
@"delete failed - %s", GSLastErrorStr(errno));
}
}
if (shmdt(bytes) < 0)
NSLog(@"[NSMutableDataShared -dealloc] shared memory detach failed - %s", GSLastErrorStr(errno));
{
NSLog(@"[NSMutableDataShared -dealloc] shared memory "
@"detach failed - %s", GSLastErrorStr(errno));
}
bytes = 0;
length = 0;
capacity = 0;
@ -3510,7 +3521,8 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
shmid = shmget(IPC_PRIVATE, bufferSize, IPC_CREAT|VM_ACCESS);
if (shmid == -1) /* Created memory? */
{
NSLog(@"[NSMutableDataShared -initWithCapacity:] shared memory get failed for %u - %s", bufferSize, GSLastErrorStr(errno));
NSLog(@"[NSMutableDataShared -initWithCapacity:] shared memory "
@"get failed for %u - %s", bufferSize, GSLastErrorStr(errno));
RELEASE(self);
self = [mutableDataMalloc allocWithZone: NSDefaultMallocZone()];
return [self initWithCapacity: bufferSize];
@ -3520,7 +3532,8 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
e = errno;
if (bytes == (void*)-1)
{
NSLog(@"[NSMutableDataShared -initWithCapacity:] shared memory attach failed for %u - %s", bufferSize, GSLastErrorStr(e));
NSLog(@"[NSMutableDataShared -initWithCapacity:] shared memory "
@"attach failed for %u - %s", bufferSize, GSLastErrorStr(e));
bytes = 0;
RELEASE(self);
self = [mutableDataMalloc allocWithZone: NSDefaultMallocZone()];
@ -3539,20 +3552,23 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
shmid = anId;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
{
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory control failed - %s", GSLastErrorStr(errno));
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory "
@"control failed - %s", GSLastErrorStr(errno));
RELEASE(self); /* Unable to access memory. */
return nil;
}
if (buf.shm_segsz < bufferSize)
{
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory segment too small");
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory "
@"segment too small");
RELEASE(self); /* Memory segment too small. */
return nil;
}
bytes = shmat(shmid, 0, 0);
if (bytes == (void*)-1)
{
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory attach failed - %s", GSLastErrorStr(errno));
NSLog(@"[NSMutableDataShared -initWithShmID:length:] shared memory "
@"attach failed - %s", GSLastErrorStr(errno));
bytes = 0;
RELEASE(self); /* Unable to attach to memory. */
return nil;
@ -3572,32 +3588,49 @@ getBytes(void* dst, void* src, unsigned len, unsigned limit, unsigned *pos)
newid = shmget(IPC_PRIVATE, size, IPC_CREAT|VM_ACCESS);
if (newid == -1) /* Created memory? */
[NSException raise: NSMallocException
format: @"Unable to create shared memory segment - %s.",
GSLastErrorStr(errno)];
{
[NSException raise: NSMallocException
format: @"Unable to create shared memory segment (size:%u) - %s.",
size, GSLastErrorStr(errno)];
}
tmp = shmat(newid, 0, 0);
if ((int)tmp == -1) /* Attached memory? */
[NSException raise: NSMallocException
format: @"Unable to attach to shared memory segment."];
{
[NSException raise: NSMallocException
format: @"Unable to attach to shared memory segment."];
}
memcpy(tmp, bytes, length);
if (bytes)
{
struct shmid_ds buf;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory control failed - %s", GSLastErrorStr(errno));
{
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory "
@"control failed - %s", GSLastErrorStr(errno));
}
else if (buf.shm_nattch == 1)
if (shmctl(shmid, IPC_RMID, &buf) < 0) /* Mark for deletion. */
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory delete failed - %s", GSLastErrorStr(errno));
{
if (shmctl(shmid, IPC_RMID, &buf) < 0) /* Mark for deletion. */
{
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory "
@"delete failed - %s", GSLastErrorStr(errno));
}
}
if (shmdt(bytes) < 0) /* Detach memory. */
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory detach failed - %s", GSLastErrorStr(errno));
{
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory "
@"detach failed - %s", GSLastErrorStr(errno));
}
}
bytes = tmp;
shmid = newid;
capacity = size;
}
if (size < length)
length = size;
{
length = size;
}
return self;
}