diff options
author | Tim Angus <tim@ngus.net> | 2001-07-25 22:57:17 +0000 |
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committer | Tim Angus <tim@ngus.net> | 2001-07-25 22:57:17 +0000 |
commit | e050b7d45483b74605d6250602d45d706cf0dfb6 (patch) | |
tree | 2ddc23b25aeea615037dd3c809516d7e0a703744 /src | |
parent | ede090a62f34f856e84904cad61670d5920cbc4d (diff) |
Silly whitespace fixes
Diffstat (limited to 'src')
-rw-r--r-- | src/cgame/cg_mem.c | 306 |
1 files changed, 153 insertions, 153 deletions
diff --git a/src/cgame/cg_mem.c b/src/cgame/cg_mem.c index e4ef82ab..d0cd29ec 100644 --- a/src/cgame/cg_mem.c +++ b/src/cgame/cg_mem.c @@ -12,180 +12,180 @@ #include "cg_local.h" -#define POOLSIZE (256 * 1024) -#define FREEMEMCOOKIE ((int)0xDEADBE3F) // Any unlikely to be used value -#define ROUNDBITS 31 // Round to 32 bytes +#define POOLSIZE (256 * 1024) +#define FREEMEMCOOKIE ((int)0xDEADBE3F) // Any unlikely to be used value +#define ROUNDBITS 31 // Round to 32 bytes struct freememnode { - // Size of ROUNDBITS - int cookie, size; // Size includes node (obviously) - struct freememnode *prev, *next; + // Size of ROUNDBITS + int cookie, size; // Size includes node (obviously) + struct freememnode *prev, *next; }; -static char memoryPool[ POOLSIZE ]; +static char memoryPool[ POOLSIZE ]; static struct freememnode *freehead; -static int freemem; +static int freemem; void *CG_Alloc( int size ) { - // Find a free block and allocate. - // Does two passes, attempts to fill same-sized free slot first. - - struct freememnode *fmn, *prev, *next, *smallest; - int allocsize, smallestsize; - char *endptr; - int *ptr; - - allocsize = ( size + sizeof(int) + ROUNDBITS ) & ~ROUNDBITS; // Round to 32-byte boundary - ptr = NULL; - - smallest = NULL; - smallestsize = POOLSIZE + 1; // Guaranteed not to miss any slots :) - for( fmn = freehead; fmn; fmn = fmn->next ) - { - if( fmn->cookie != FREEMEMCOOKIE ) - CG_Error( "CG_Alloc: Memory corruption detected!\n" ); - - if( fmn->size >= allocsize ) - { - // We've got a block - if( fmn->size == allocsize ) - { - // Same size, just remove - - prev = fmn->prev; - next = fmn->next; - if( prev ) - prev->next = next; // Point previous node to next - if( next ) - next->prev = prev; // Point next node to previous - if( fmn == freehead ) - freehead = next; // Set head pointer to next - ptr = (int *) fmn; - break; // Stop the loop, this is fine - } - else + // Find a free block and allocate. + // Does two passes, attempts to fill same-sized free slot first. + + struct freememnode *fmn, *prev, *next, *smallest; + int allocsize, smallestsize; + char *endptr; + int *ptr; + + allocsize = ( size + sizeof(int) + ROUNDBITS ) & ~ROUNDBITS; // Round to 32-byte boundary + ptr = NULL; + + smallest = NULL; + smallestsize = POOLSIZE + 1; // Guaranteed not to miss any slots :) + for( fmn = freehead; fmn; fmn = fmn->next ) + { + if( fmn->cookie != FREEMEMCOOKIE ) + CG_Error( "CG_Alloc: Memory corruption detected!\n" ); + + if( fmn->size >= allocsize ) + { + // We've got a block + if( fmn->size == allocsize ) { - // Keep track of the smallest free slot - if( fmn->size < smallestsize ) - { - smallest = fmn; - smallestsize = fmn->size; - } - } - } - } + // Same size, just remove + + prev = fmn->prev; + next = fmn->next; + if( prev ) + prev->next = next; // Point previous node to next + if( next ) + next->prev = prev; // Point next node to previous + if( fmn == freehead ) + freehead = next; // Set head pointer to next + ptr = (int *) fmn; + break; // Stop the loop, this is fine + } + else + { + // Keep track of the smallest free slot + if( fmn->size < smallestsize ) + { + smallest = fmn; + smallestsize = fmn->size; + } + } + } + } - if( !ptr && smallest ) - { - // We found a slot big enough - smallest->size -= allocsize; - endptr = (char *) smallest + smallest->size; - ptr = (int *) endptr; - } - - if( ptr ) - { - freemem -= allocsize; - if( cg_debugAlloc.integer ) - CG_Printf( "CG_Alloc of %i bytes (%i left)\n", allocsize, freemem ); - memset( ptr, 0, allocsize ); - *ptr++ = allocsize; // Store a copy of size for deallocation - return( (void *) ptr ); - } - - CG_Error( "CG_Alloc: failed on allocation of %i bytes\n", size ); - return( NULL ); + if( !ptr && smallest ) + { + // We found a slot big enough + smallest->size -= allocsize; + endptr = (char *) smallest + smallest->size; + ptr = (int *) endptr; + } + + if( ptr ) + { + freemem -= allocsize; + if( cg_debugAlloc.integer ) + CG_Printf( "CG_Alloc of %i bytes (%i left)\n", allocsize, freemem ); + memset( ptr, 0, allocsize ); + *ptr++ = allocsize; // Store a copy of size for deallocation + return( (void *) ptr ); + } + + CG_Error( "CG_Alloc: failed on allocation of %i bytes\n", size ); + return( NULL ); } void CG_Free( void *ptr ) { - // Release allocated memory, add it to the free list. - - struct freememnode *fmn; - char *freeend; - int *freeptr; - - freeptr = ptr; - freeptr--; - - freemem += *freeptr; - if( cg_debugAlloc.integer ) - CG_Printf( "CG_Free of %i bytes (%i left)\n", *freeptr, freemem ); - - for( fmn = freehead; fmn; fmn = fmn->next ) - { - freeend = ((char *) fmn) + fmn->size; - if( freeend == (char *) freeptr ) - { - // Released block can be merged to an existing node - - fmn->size += *freeptr; // Add size of node. - return; - } - } - // No merging, add to head of list - - fmn = (struct freememnode *) freeptr; - fmn->size = *freeptr; // Set this first to avoid corrupting *freeptr - fmn->cookie = FREEMEMCOOKIE; - fmn->prev = NULL; - fmn->next = freehead; - freehead->prev = fmn; - freehead = fmn; + // Release allocated memory, add it to the free list. + + struct freememnode *fmn; + char *freeend; + int *freeptr; + + freeptr = ptr; + freeptr--; + + freemem += *freeptr; + if( cg_debugAlloc.integer ) + CG_Printf( "CG_Free of %i bytes (%i left)\n", *freeptr, freemem ); + + for( fmn = freehead; fmn; fmn = fmn->next ) + { + freeend = ((char *) fmn) + fmn->size; + if( freeend == (char *) freeptr ) + { + // Released block can be merged to an existing node + + fmn->size += *freeptr; // Add size of node. + return; + } + } + // No merging, add to head of list + + fmn = (struct freememnode *) freeptr; + fmn->size = *freeptr; // Set this first to avoid corrupting *freeptr + fmn->cookie = FREEMEMCOOKIE; + fmn->prev = NULL; + fmn->next = freehead; + freehead->prev = fmn; + freehead = fmn; } void CG_InitMemory( void ) { - // Set up the initial node - - freehead = (struct freememnode *) memoryPool; - freehead->cookie = FREEMEMCOOKIE; - freehead->size = POOLSIZE; - freehead->next = NULL; - freehead->prev = NULL; - freemem = sizeof(memoryPool); + // Set up the initial node + + freehead = (struct freememnode *) memoryPool; + freehead->cookie = FREEMEMCOOKIE; + freehead->size = POOLSIZE; + freehead->next = NULL; + freehead->prev = NULL; + freemem = sizeof(memoryPool); } void CG_DefragmentMemory( void ) { - // If there's a frenzy of deallocation and we want to - // allocate something big, this is useful. Otherwise... - // not much use. - - struct freememnode *startfmn, *endfmn, *fmn; - - for( startfmn = freehead; startfmn; ) - { - endfmn = (struct freememnode *)(((char *) startfmn) + startfmn->size); - for( fmn = freehead; fmn; ) - { - if( fmn->cookie != FREEMEMCOOKIE ) - CG_Error( "CG_DefragmentMemory: Memory corruption detected!\n" ); - - if( fmn == endfmn ) - { - // We can add fmn onto startfmn. - - if( fmn->prev ) - fmn->prev->next = fmn->next; - if( fmn->next ) - { - if( !(fmn->next->prev = fmn->prev) ) - freehead = fmn->next; // We're removing the head node - } - startfmn->size += fmn->size; - memset( fmn, 0, sizeof(struct freememnode) ); // A redundant call, really. - - startfmn = freehead; - endfmn = fmn = NULL; // Break out of current loop - } - else - fmn = fmn->next; - } - - if( endfmn ) - startfmn = startfmn->next; // endfmn acts as a 'restart' flag here - } + // If there's a frenzy of deallocation and we want to + // allocate something big, this is useful. Otherwise... + // not much use. + + struct freememnode *startfmn, *endfmn, *fmn; + + for( startfmn = freehead; startfmn; ) + { + endfmn = (struct freememnode *)(((char *) startfmn) + startfmn->size); + for( fmn = freehead; fmn; ) + { + if( fmn->cookie != FREEMEMCOOKIE ) + CG_Error( "CG_DefragmentMemory: Memory corruption detected!\n" ); + + if( fmn == endfmn ) + { + // We can add fmn onto startfmn. + + if( fmn->prev ) + fmn->prev->next = fmn->next; + if( fmn->next ) + { + if( !(fmn->next->prev = fmn->prev) ) + freehead = fmn->next; // We're removing the head node + } + startfmn->size += fmn->size; + memset( fmn, 0, sizeof(struct freememnode) ); // A redundant call, really. + + startfmn = freehead; + endfmn = fmn = NULL; // Break out of current loop + } + else + fmn = fmn->next; + } + + if( endfmn ) + startfmn = startfmn->next; // endfmn acts as a 'restart' flag here + } } |