server.h

   1 #ifndef __UDEBUG_SERVER_H
   2 #define __UDEBUG_SERVER_H
   3
   4 #include <libubox/list.h>
   5 #include <libubox/uloop.h>
   6 #include <libubox/avl.h>
   7 #include <libubox/blobmsg.h>
   8 #include <libubox/udebug.h>
   9 #include <libubox/udebug-proto.h>
  10
  11 extern int debug_level;
  12
  13 #define D(level, format, ...)                                                   \
  14         do {                                                                    \
  15                 if (debug_level >= level)                                       \
  16                         fprintf(stderr, "DEBUG: %s(%d) " format "\n",           \
  17                                 __func__, __LINE__, ##__VA_ARGS__);             \
  18         } while (0)
  19
  20 #define DC(level, cl, format, ...)                                              \
  21         D(level, "[%s(%d)] " format, cl->proc_name, cl->pid, ##__VA_ARGS__)
  22
  23 struct client {
  24         struct list_head list;
  25         struct list_head bufs;
  26         struct uloop_fd fd;
  27         int notify_id;
  28
  29         char proc_name[64];
  30         int pid;
  31         int uid;
  32
  33         int rx_fd;
  34         size_t rx_ofs;
  35         struct {
  36                 struct udebug_client_msg msg;
  37                 union {
  38                         struct blob_attr data;
  39                         uint8_t buf[4096];
  40                 };
  41         } __attribute__((packed,aligned(4))) rx_buf;
  42 };
  43
  44 struct client_ring {
  45         struct list_head list;
  46         struct avl_node node;
  47         struct client *cl;
  48
  49         int fd;
  50         uint32_t id;
  51         uint32_t ring_size, data_size;
  52         const char *name;
  53         struct blob_attr *flags;
  54 };
  55
  56 extern struct avl_tree rings;
  57
  58 void client_alloc(int fd);
  59 struct client_ring *client_ring_alloc(struct client *cl);
  60 struct client_ring *client_ring_get_by_id(struct client *cl, uint32_t id);
  61 void client_ring_free(struct client_ring *r);
  62
  63 static inline uint32_t ring_id(struct client_ring *r)
  64 {
  65         return (uint32_t)(uintptr_t)r->node.key;
  66 }
  67
  68 static inline struct client_ring *ring_get_by_id(uint32_t id)
  69 {
  70         struct client_ring *r;
  71         void *key = (void *)(uintptr_t)id;
  72
  73         return avl_find_element(&rings, key, r, node);
  74 }
  75
  76 void udebug_ubus_init(void);
  77 void udebug_ubus_ring_notify(struct client_ring *r, bool add);
  78 void udebug_ubus_free(void);
  79
  80 #endif