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Overview
| Comment: | Suppress compiler warnings. Fix a bug in IO error detection on windows. (CVS 3564) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
daed2bab00ea3952d2d4e5182ca07653 |
| User & Date: | drh 2007-01-05 14:38:55 |
Context
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2007-01-05
| ||
| 14:41 | Remove redundant variable. (CVS 3565) (check-in: 2a7f5aaf user: drh tags: trunk) | |
| 14:38 | Suppress compiler warnings. Fix a bug in IO error detection on windows. (CVS 3564) (check-in: daed2bab user: drh tags: trunk) | |
| 02:00 | In the btree.c, when releasing the page1 lock, first make sure the pager has not reset and released the lock already. This fixes a bug introduced by (3549). (CVS 3563) (check-in: 36a2db96 user: drh tags: trunk) | |
Changes
Changes to src/os_win.c.
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*/
static int winRead(OsFile *id, void *pBuf, int amt){
DWORD got;
assert( id!=0 );
SimulateIOError(return SQLITE_IOERR);
TRACE3("READ %d lock=%d\n", ((winFile*)id)->h, ((winFile*)id)->locktype);
if( !ReadFile(((winFile*)id)->h, pBuf, amt, &got, 0) ){
got = -1;
}
if( got==(DWORD)amt ){
return SQLITE_OK;
}else if( got<0 ){
return SQLITE_IOERR_READ;
}else{
memset(&((char*)pBuf)[got], 0, amt-got);
return SQLITE_IOERR_SHORT_READ;
}
}
/*
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| < < |
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*/
static int winRead(OsFile *id, void *pBuf, int amt){
DWORD got;
assert( id!=0 );
SimulateIOError(return SQLITE_IOERR);
TRACE3("READ %d lock=%d\n", ((winFile*)id)->h, ((winFile*)id)->locktype);
if( !ReadFile(((winFile*)id)->h, pBuf, amt, &got, 0) ){
return SQLITE_IOERR_READ;
}
if( got==(DWORD)amt ){
return SQLITE_OK;
}else{
memset(&((char*)pBuf)[got], 0, amt-got);
return SQLITE_IOERR_SHORT_READ;
}
}
/*
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Changes to src/random.c.
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************************************************************************* ** This file contains code to implement a pseudo-random number ** generator (PRNG) for SQLite. ** ** Random numbers are used by some of the database backends in order ** to generate random integer keys for tables or random filenames. ** ** $Id: random.c,v 1.15 2006/01/06 14:32:20 drh Exp $ */ #include "sqliteInt.h" #include "os.h" /* ** Get a single 8-bit random value from the RC4 PRNG. The Mutex ................................................................................ ** to know. To minimize the risk of problems due to bad lrand48() ** implementations, SQLite uses this random number generator based ** on RC4, which we know works very well. ** ** (Later): Actually, OP_NewRowid does not depend on a good source of ** randomness any more. But we will leave this code in all the same. */ static int randomByte(){ unsigned char t; /* All threads share a single random number generator. ** This structure is the current state of the generator. */ static struct { unsigned char isInit; /* True if initialized */ |
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************************************************************************* ** This file contains code to implement a pseudo-random number ** generator (PRNG) for SQLite. ** ** Random numbers are used by some of the database backends in order ** to generate random integer keys for tables or random filenames. ** ** $Id: random.c,v 1.16 2007/01/05 14:38:56 drh Exp $ */ #include "sqliteInt.h" #include "os.h" /* ** Get a single 8-bit random value from the RC4 PRNG. The Mutex ................................................................................ ** to know. To minimize the risk of problems due to bad lrand48() ** implementations, SQLite uses this random number generator based ** on RC4, which we know works very well. ** ** (Later): Actually, OP_NewRowid does not depend on a good source of ** randomness any more. But we will leave this code in all the same. */ static int randomByte(void){ unsigned char t; /* All threads share a single random number generator. ** This structure is the current state of the generator. */ static struct { unsigned char isInit; /* True if initialized */ |