ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

PSP2: Better truncate

This commit is contained in:
Vicki Pfau 2018-01-09 20:06:42 -08:00
parent 36a0f43dc2
commit 715efc63bd
1 changed files with 6 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/platform/psp2/sce-vfs.c
View File

@ -10,6 +10,10 @@
#include <mgba-util/vfs.h>
#include <mgba-util/memory.h>
#ifndef SCE_CST_SIZE
#define SCE_CST_SIZE 0x0004
#endif
struct VFileSce {
struct VFile d;
@ -120,20 +124,8 @@ static void _vfsceUnmap(struct VFile* vf, void* memory, size_t size) {
static void _vfsceTruncate(struct VFile* vf, size_t size) {
struct VFileSce* vfsce = (struct VFileSce*) vf;
SceOff cur = sceIoLseek(vfsce->fd, 0, SEEK_CUR);
SceOff end = sceIoLseek(vfsce->fd, 0, SEEK_END);
if (end < size) {
uint8_t buffer[2048] = {};
size_t write = size - end;
while (write >= sizeof(buffer)) {
sceIoWrite(vfsce->fd, buffer, sizeof(buffer));
write -= sizeof(buffer);
}
if (write) {
sceIoWrite(vfsce->fd, buffer, write);
}
} // TODO: Else
sceIoLseek(vfsce->fd, cur, SEEK_SET);
SceIoStat stat = { .st_size = size };
sceIoChstatByFd(vfsce->fd, &stat, SCE_CST_SIZE);
}
ssize_t _vfsceSize(struct VFile* vf) {