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Make containers use mmap() where available

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svn path=/trunk/netsurf/; revision=3018
This commit is contained in:
Rob Kendrick 2006-10-26 23:53:16 +00:00
parent 87a660d1ea
commit 88fec4362c
2 changed files with 18 additions and 6 deletions
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3
utils/config.h
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@ -54,6 +54,9 @@
#define WITH_PRINT #define WITH_PRINT
/* Theme auto-install */ /* Theme auto-install */
#define WITH_THEME_INSTALL #define WITH_THEME_INSTALL
#else
/* We're likely to have a working mmap() */
#define WITH_MMAP
#endif #endif
#ifdef ncos #ifdef ncos
/* Kiosk style browsing support */ /* Kiosk style browsing support */

21
utils/container.c
View File

@ -21,6 +21,10 @@
#include <stdbool.h> #include <stdbool.h>
#include <arpa/inet.h> #include <arpa/inet.h>
#include "netsurf/utils/container.h" #include "netsurf/utils/container.h"
#include "netsurf/utils/config.h"
#ifdef WITH_MMAP
#include <sys/mman.h>
#endif
struct container_dirent { struct container_dirent {
unsigned char filename[16]; unsigned char filename[16];
@ -119,15 +123,16 @@ static void container_process(struct container_ctx *ctx)
{ {
unsigned char filename[16]; unsigned char filename[16];
u_int32_t start, len, flags1, flags2; u_int32_t start, len, flags1, flags2;
ctx->data = malloc(ctx->header.diroffset); #ifdef WITH_MMAP
ctx->data = mmap(NULL, ctx->header.diroffset, PROT_READ, MAP_PRIVATE,
/* TODO: Perhaps replace this with mmap() on UNIX? */ fileno(ctx->fh), 0);
#else
ctx->data = malloc(ctx->header.diroffset);
fseek(ctx->fh, 0, SEEK_SET); fseek(ctx->fh, 0, SEEK_SET);
fread(ctx->data, ctx->header.diroffset, 1, ctx->fh); fread(ctx->data, ctx->header.diroffset, 1, ctx->fh);
#endif
fseek(ctx->fh, ctx->header.diroffset, SEEK_SET); fseek(ctx->fh, ctx->header.diroffset, SEEK_SET);
/* now work through the directory structure taking it apart into /* now work through the directory structure taking it apart into
* our structure */ * our structure */
#define BEREAD(x) do { fread(&(x), 4, 1, ctx->fh);(x) = ntohl((x)); } while (0) #define BEREAD(x) do { fread(&(x), 4, 1, ctx->fh);(x) = ntohl((x)); } while (0)
@ -291,7 +296,11 @@ void container_close(struct container_ctx *ctx)
container_write_dir(ctx); container_write_dir(ctx);
} else if (ctx->processed) { } else if (ctx->processed) {
#ifdef WITH_MMAP
munmap(ctx->data, ctx->header.diroffset);
#else
free(ctx->data); free(ctx->data);
#endif
} }
fclose(ctx->fh); fclose(ctx->fh);