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pb: Introduce pb message types and cr-descriptors

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The protobuf-c generate plain routines for entries manipulations, but
we want to have some "generic" way of working with messages. Collect them
all in an array of descriptors (similar to image files descriptions) and
do full typechecking while this.

Such thing will allow to simplfy code later.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2012-08-07 02:00:39 +04:00
parent 8bff4c7fca
commit 9e84bd1083
3 changed files with 137 additions and 0 deletions
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95
protobuf.c
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@@ -6,12 +6,107 @@
#include <google/protobuf-c/protobuf-c.h>
#include "crtools.h"
#include "compiler.h"
#include "types.h"
#include "log.h"
#include "util.h"
#include "protobuf.h"
#include "protobuf/inventory.pb-c.h"
#include "protobuf/regfile.pb-c.h"
#include "protobuf/eventfd.pb-c.h"
#include "protobuf/eventpoll.pb-c.h"
#include "protobuf/signalfd.pb-c.h"
#include "protobuf/inotify.pb-c.h"
#include "protobuf/core.pb-c.h"
#include "protobuf/mm.pb-c.h"
#include "protobuf/pipe.pb-c.h"
#include "protobuf/fifo.pb-c.h"
#include "protobuf/fdinfo.pb-c.h"
#include "protobuf/pipe-data.pb-c.h"
#include "protobuf/pstree.pb-c.h"
#include "protobuf/sa.pb-c.h"
#include "protobuf/sk-unix.pb-c.h"
#include "protobuf/sk-inet.pb-c.h"
#include "protobuf/sk-packet.pb-c.h"
#include "protobuf/creds.pb-c.h"
#include "protobuf/itimer.pb-c.h"
#include "protobuf/utsns.pb-c.h"
#include "protobuf/ipc-var.pb-c.h"
#include "protobuf/ipc-shm.pb-c.h"
#include "protobuf/ipc-msg.pb-c.h"
#include "protobuf/ipc-sem.pb-c.h"
#include "protobuf/fs.pb-c.h"
#include "protobuf/remap-file-path.pb-c.h"
#include "protobuf/ghost-file.pb-c.h"
#include "protobuf/mnt.pb-c.h"
#include "protobuf/netdev.pb-c.h"
#include "protobuf/tcp-stream.pb-c.h"
struct cr_pb_message_desc {
pb_getpksize_t getpksize;
pb_pack_t pack;
pb_unpack_t unpack;
pb_free_t free;
const ProtobufCMessageDescriptor *pb_desc;
};
/*
* This should be explicitly "called" to do type-checking
*/
#define CR_PB_MDESC_INIT(__var, __type, __name) do { \
__var.getpksize = PB_GPS_TYPECHECK((__type *)NULL, __name); \
__var.pack = PB_PACK_TYPECHECK((__type *)NULL, __name); \
__var.unpack = PB_UNPACK_TYPECHECK((__type **)NULL, __name); \
__var.free = PB_FREE_TYPECHECK((__type *)NULL, __name); \
__var.pb_desc = &__name##__descriptor; \
} while (0)
static struct cr_pb_message_desc cr_pb_descs[PB_MAX];
#define CR_PB_DESC(__type, __vtype, __ftype) \
CR_PB_MDESC_INIT(cr_pb_descs[PB_##__type], __vtype##Entry, __ftype##_entry)
void cr_pb_init(void)
{
CR_PB_DESC(INVENTORY, Inventory, inventory);
CR_PB_DESC(FDINFO, Fdinfo, fdinfo);
CR_PB_DESC(REG_FILES, RegFile, reg_file);
CR_PB_DESC(EVENTFD, EventfdFile, eventfd_file);
CR_PB_DESC(EVENTPOLL, EventpollFile, eventpoll_file);
CR_PB_DESC(EVENTPOLL_TFD, EventpollTfd, eventpoll_tfd);
CR_PB_DESC(SIGNALFD, Signalfd, signalfd);
CR_PB_DESC(INOTIFY, InotifyFile, inotify_file);
CR_PB_DESC(INOTIFY_WD, InotifyWd, inotify_wd);
CR_PB_DESC(CORE, Core, core);
CR_PB_DESC(MM, Mm, mm);
CR_PB_DESC(VMAS, Vma, vma);
CR_PB_DESC(PIPES, Pipe, pipe);
CR_PB_DESC(PIPES_DATA, PipeData, pipe_data);
CR_PB_DESC(FIFO, Fifo, fifo);
CR_PB_DESC(PSTREE, Pstree, pstree);
CR_PB_DESC(SIGACT, Sa, sa);
CR_PB_DESC(UNIXSK, UnixSk, unix_sk);
CR_PB_DESC(INETSK, InetSk, inet_sk);
CR_PB_DESC(SK_QUEUES, SkPacket, sk_packet);
CR_PB_DESC(ITIMERS, Itimer, itimer);
CR_PB_DESC(CREDS, Creds, creds);
CR_PB_DESC(UTSNS, Utsns, utsns);
CR_PB_DESC(IPCNS_VAR, IpcVar, ipc_var);
CR_PB_DESC(IPCNS_SHM, IpcShm, ipc_shm);
/* There's no _entry suffix in this one :( */
CR_PB_MDESC_INIT(cr_pb_descs[PB_IPCNS_MSG], IpcMsg, ipc_msg);
CR_PB_DESC(IPCNS_MSG_ENT, IpcMsg, ipc_msg);
CR_PB_DESC(IPCNS_SEM, IpcSem, ipc_sem);
CR_PB_DESC(FS, Fs, fs);
CR_PB_DESC(REMAP_FPATH, RemapFilePath, remap_file_path);
CR_PB_DESC(GHOST_FILE, GhostFile, ghost_file);
CR_PB_DESC(TCP_STREAM, TcpStream, tcp_stream);
CR_PB_DESC(MOUNTPOINTS, Mnt, mnt);
CR_PB_DESC(NETDEV, NetDevice, net_device);
}
/*
* To speed up reading of packed objects