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