Drizzled Public API Documentation

state.cc
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3  * Drizzle Client & Protocol Library
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37 
43 #include <libdrizzle/common.h>
44 
45 drizzle_return_t drizzle_state_loop(drizzle_con_st *con)
46 {
47  if (con == NULL)
48  {
49  return DRIZZLE_RETURN_INVALID_ARGUMENT;
50  }
51 
52  while (drizzle_state_none(con) == false)
53  {
54  drizzle_return_t ret= con->state_stack[con->state_current - 1](con);
55  if (ret != DRIZZLE_RETURN_OK)
56  {
57  if (ret != DRIZZLE_RETURN_IO_WAIT && ret != DRIZZLE_RETURN_PAUSE &&
58  ret != DRIZZLE_RETURN_ERROR_CODE)
59  {
60  drizzle_con_close(con);
61  }
62 
63  return ret;
64  }
65  }
66 
67  return DRIZZLE_RETURN_OK;
68 }
69 
70 drizzle_return_t drizzle_state_packet_read(drizzle_con_st *con)
71 {
72  if (con == NULL)
73  {
74  return DRIZZLE_RETURN_INVALID_ARGUMENT;
75  }
76 
77  drizzle_log_debug(con->drizzle, "drizzle_state_packet_read");
78 
79  if (con->buffer_size < 4)
80  {
81  drizzle_state_push(con, drizzle_state_read);
82  return DRIZZLE_RETURN_OK;
83  }
84 
85  con->packet_size= drizzle_get_byte3(con->buffer_ptr);
86 
87  if (con->packet_number != con->buffer_ptr[3])
88  {
89  drizzle_set_error(con->drizzle, "drizzle_state_packet_read",
90  "bad packet number:%u:%u", con->packet_number,
91  con->buffer_ptr[3]);
92  return DRIZZLE_RETURN_BAD_PACKET_NUMBER;
93  }
94 
95  drizzle_log_debug(con->drizzle, "packet_size= %zu, packet_number= %u",
96  con->packet_size, con->packet_number);
97 
98  con->packet_number++;
99 
100  con->buffer_ptr+= 4;
101  con->buffer_size-= 4;
102 
103  drizzle_state_pop(con);
104  return DRIZZLE_RETURN_OK;
105 }
static void drizzle_state_pop(drizzle_con_st *con)
Definition: conn_local.h:104
static bool drizzle_state_none(drizzle_con_st *con)
Definition: conn_local.h:71
static void drizzle_state_push(drizzle_con_st *con, drizzle_state_fn *function)
Definition: conn_local.h:88
void drizzle_set_error(drizzle_st *drizzle, const char *function, const char *format,...)
Definition: drizzle.cc:881
drizzle_return_t drizzle_state_loop(drizzle_con_st *con)
Definition: state.cc:45
static void drizzle_log_debug(drizzle_st *drizzle, const char *format,...)
System Include Files.