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Retain/Release and DO patches from Richard Frith-MacDonald

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@2571 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Adam Fedor 1997-10-28 14:34:49 +00:00
parent cd1c0e3508
commit dd9eaaa18b
25 changed files with 697 additions and 134 deletions
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44
Source/NSData.m
View file

@ -81,7 +81,8 @@
#include <sys/ipc.h>
#include <sys/shm.h>
#define VM_ACCESS 0644 /* self read/write - other readonly */
#define VM_RDONLY 0644 /* self read/write - other readonly */
#define VM_ACCESS 0666 /* read/write access for all */
@class NSDataShared;
@class NSMutableDataShared;
#endif
@ -1334,7 +1335,18 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
{
if (bytes)
{
shmdt(bytes);
struct shmid_ds buf;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
NSLog(@"[NSDataShared -dealloc] shared memory control failed - %s",
strerror(errno));
else if (buf.shm_nattch == 1)
if (shmctl(shmid, IPC_RMID, &buf) < 0) /* Mark for deletion. */
NSLog(@"[NSDataShared -dealloc] shared memory delete failed - %s",
strerror(errno));
if (shmdt(bytes) < 0)
NSLog(@"[NSDataShared -dealloc] shared memory detach failed - %s",
strerror(errno));
bytes = 0;
length = 0;
shmid = -1;
@ -1352,7 +1364,7 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
shmid = -1;
if (aBuffer && bufferSize)
{
shmid = shmget(IPC_PRIVATE, bufferSize, IPC_CREAT|VM_ACCESS);
shmid = shmget(IPC_PRIVATE, bufferSize, IPC_CREAT|VM_RDONLY);
if (shmid == -1) /* Created memory? */
{
NSLog(@"[-initWithBytes:length:] shared mem get failed for %u - %s",
@ -1363,7 +1375,6 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
}
bytes = shmat(shmid, 0, 0);
shmctl(shmid, IPC_RMID, &buf); /* Mark for later deletion. */
if (bytes == (void*)-1)
{
NSLog(@"[-initWithBytes:length:] shared mem attach failed for %u - %s",
@ -1670,7 +1681,15 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
{
if (bytes)
{
shmdt(bytes);
struct shmid_ds buf;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
NSLog(@"[NSMutableDataShared -dealloc] shared memory control failed - %s", strerror(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", strerror(errno));
if (shmdt(bytes) < 0)
NSLog(@"[NSMutableDataShared -dealloc] shared memory detach failed - %s", strerror(errno));
bytes = 0;
length = 0;
capacity = 0;
@ -1710,8 +1729,6 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
bytes = shmat(shmid, 0, 0);
e = errno;
shmctl(shmid, IPC_RMID, &buf); /* Mark for later deletion. */
if (bytes == (void*)-1)
{
NSLog(@"[NSMutableDataShared -initWithCapacity:] shared memory attach failed for %u - %s", bufferSize, strerror(e));
@ -1774,13 +1791,22 @@ readContentsOfFile(NSString* path, void** buf, unsigned* len)
format:@"Unable to create shared memory segment - %s.",
strerror(errno)];
tmp = shmat(newid, 0, 0);
if (shmctl(newid, IPC_RMID, &buf) == 0) /* Mark for later deletion. */
if ((int)tmp == -1) /* Attached memory? */
[NSException raise:NSMallocException
format:@"Unable to attach to shared memory segment."];
memcpy(tmp, bytes, length);
if (bytes)
shmdt(bytes);
{
struct shmid_ds buf;
if (shmctl(shmid, IPC_STAT, &buf) < 0)
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory control failed - %s", strerror(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", strerror(errno));
if (shmdt(bytes) < 0) /* Detach memory. */
NSLog(@"[NSMutableDataShared -setCapacity:] shared memory detach failed - %s", strerror(errno));
}
bytes = tmp;
shmid = newid;
capacity = size;