/*
* exit. without it the user program cannot terminate correctly.
*/
void zrt_zcall_enhanced_exit(int status){
ZRT_LOG(L_SHORT, "status %d exiting...", status);
get_fstab_observer()->mount_export(HANDLE_ONLY_FSTAB_SECTION);
zvm_exit(status); /*get controls into zerovm*/
/* unreachable code*/
return;
}
int zfork(){
ZRT_LOG(L_INFO, P_TEXT, "call zvm_fork");
/*zvm fork syscall here
...*/
int res = zvm_fork();
ZRT_LOG(L_INFO, "zvm_fork res=%d", res);
/*update state for removable mounts, all removable mounts needs to be refreshed*/
get_fstab_observer()->reset_removable(HANDLE_ONLY_FSTAB_SECTION);
/*re-read nvram file because after fork his content can be changed. */
/*Folowing nvram handlers using only stack and nor heap*/
struct NvramLoaderPublicInterface* nvram = INSTANCE_L(NVRAM_LOADER)();
/*if nvram config file not empty then do parsing*/
if ( nvram->read(nvram, DEV_NVRAM) > 0 ){
nvram->parse(nvram);
/*handle debug section - verbosity*/
if ( NULL != nvram->section_by_name( nvram, DEBUG_SECTION_NAME ) ){
ZRT_LOG(L_INFO, "%s", "nvram handle debug");
nvram->handle(nvram, HANDLE_ONLY_DEBUG_SECTION, NULL, NULL, NULL );
}
/*handle time section*/
if ( NULL != nvram->section_by_name( nvram, TIME_SECTION_NAME ) ){
nvram->handle(nvram, HANDLE_ONLY_TIME_SECTION, static_timeval(), NULL, NULL);
}
}
ZRT_LOG(L_SHORT, "zfork() res=%d ", res);
return res;
}
/*Try to mount postponed mount, in case if sub path matched.
@return 0 if success, -1 if we don't need to mount*/
static int lazy_mount(const char* path){
/*lazy mount is not supported under modern file system*/
#ifndef FUSEGLUE_EXT
/*if it's time to do mount, then do all waiting mounts*/
struct FstabObserver* observer = get_fstab_observer();
struct FstabRecordContainer* record;
while( NULL != (record = observer->locate_postpone_mount( observer, path,
EFstabMountWaiting)) ){
observer->mount_import(observer, record);
return 0;
}
#endif //FUSEGLUE_EXT
return -1;
}
