/*1st step zrt initializer*/
void zrt_internal_init( const struct UserManifest const* manifest ){
ITEMS_CREATOR;
/*construct memory manager and pass zerovm MANIFEST members:
(1)heap start address, (2)heap size, (3)existing brk address got
from zcalls_prolog interface*/
CONSTRUCT_L(MEMORY_MANAGER) ( manifest->heap_ptr,
manifest->heap_size,
static_prolog_brk() );
/*manage mounted filesystems*/
s_mounts_manager = get_mounts_manager();
/*alloc filesystem based on channels*/
struct ChannelsModeUpdaterPublicInterface *nvram_mode_setting_updater;
s_channels_mount =
CONSTRUCT_L(CHANNELS_FILESYSTEM)( &nvram_mode_setting_updater,
s_mounts_manager->handle_allocator,
manifest->channels,
manifest->channels_count,
s_emu_channels,
sizeof(s_emu_channels)/sizeof(struct ZVMChannel));
set_mapping_channels_settings_updater( nvram_mode_setting_updater );
/*alloc main filesystem that combines all filesystems mounts*/
s_transparent_mount = alloc_transparent_mount( s_mounts_manager );
s_zrt_ready = 1;
/*open standard files to conform C*/
s_channels_mount->open( s_channels_mount, DEV_STDIN, O_RDONLY, 0 );
s_channels_mount->open( s_channels_mount, DEV_STDOUT, O_WRONLY, 0 );
s_channels_mount->open( s_channels_mount, DEV_STDERR, O_WRONLY, 0 );
/*create mem mount*/
s_mem_mount = CONSTRUCT_L(INMEMORY_FILESYSTEM)( s_mounts_manager->handle_allocator );
/*Mount filesystems*/
s_mounts_manager->mount_add( "/dev", s_channels_mount );
s_mounts_manager->mount_add( "/", s_mem_mount );
/*explicitly create /dev directory in memmount, it's required for consistent
FS structure, readdir from now can list /dev dir recursively from root */
s_mem_mount->mkdir( s_mem_mount, "/dev", 0777 );
/*add directories here that can be expected by some user applications */
s_mem_mount->mkdir( s_mem_mount, "/tmp", 0777 );
/*user main execution just after zrt initialization*/
}
int mm_fusemount_add( struct MountsManager *mounts_manager,
const char* path,
struct fuse_operations* fuse_mount,
char expect_absolute_path,
char proxy_mode){
struct MountsPublicInterface* fs
= CONSTRUCT_L(FUSE_OPERATIONS_MOUNT)( get_handle_allocator(),
get_open_files_pool(),
fuse_mount,
proxy_mode);
return mm_mount_add( mounts_manager, path, fs, expect_absolute_path );
}
