1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
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13 * notice, this list of conditions and the following disclaimer.
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include "libmemcached/common.h"
40 #define MAX_ERROR_LENGTH 2048
41 struct memcached_error_t
45 struct memcached_error_t
*next
;
46 memcached_return_t rc
;
49 char message
[MAX_ERROR_LENGTH
];
52 static void _set(memcached_st
*memc
, memcached_string_t
*str
, const memcached_return_t rc
, const int local_errno
)
54 WATCHPOINT_ASSERT(memc
);
58 if (memc
->error_messages
&& memc
->error_messages
->query_id
!= memc
->query_id
)
60 memcached_error_free(memc
);
63 memcached_error_t
*error
;
64 error
= (struct memcached_error_t
*)libmemcached_malloc(memc
, sizeof(struct memcached_error_t
));
70 error
->query_id
= memc
->query_id
;
72 error
->local_errno
= local_errno
;
76 size_t length
= str
->size
> (size_t)MAX_ERROR_LENGTH
? MAX_ERROR_LENGTH
: str
->size
;
78 memcpy(error
->message
, str
->c_str
, error
->size
);
79 error
->message
[error
->size
]= 0;
86 error
->next
= memc
->error_messages
;
87 memc
->error_messages
= error
;
90 memcached_return_t
memcached_set_error_string(memcached_st
*memc
, memcached_return_t rc
, const char *str
, size_t length
)
92 memcached_string_t tmp
;
95 return memcached_set_error(memc
, rc
, &tmp
);
98 memcached_return_t
memcached_set_error(memcached_st
*memc
, memcached_return_t rc
, memcached_string_t
*str
)
100 if (rc
== MEMCACHED_SUCCESS
)
101 return MEMCACHED_SUCCESS
;
103 _set(memc
, str
, rc
, 0);
108 memcached_return_t
memcached_set_errno(memcached_st
*memc
, int local_errno
, memcached_string_t
*str
)
110 _set(memc
, str
, MEMCACHED_ERRNO
, local_errno
);
112 return MEMCACHED_ERRNO
;
115 static void _error_print(const memcached_error_t
*error
)
122 fprintf(stderr
, "%s\n", memcached_strerror(NULL
, error
->rc
) );
126 fprintf(stderr
, "%s %s\n", memcached_strerror(NULL
, error
->rc
), error
->message
);
129 _error_print(error
->next
);
132 void memcached_error_print(const memcached_st
*self
)
137 _error_print(self
->error_messages
);
140 static void _error_free(memcached_error_t
*error
)
145 _error_free(error
->next
);
147 if (error
&& error
->root
)
149 libmemcached_free(error
->root
, error
);
157 void memcached_error_free(memcached_st
*self
)
162 _error_free(self
->error_messages
);
165 const char *memcached_last_error_message(memcached_st
*memc
)
168 return memcached_strerror(memc
, MEMCACHED_INVALID_ARGUMENTS
);
170 if (! memc
->error_messages
)
171 return memcached_strerror(memc
, MEMCACHED_SUCCESS
);
173 if (! memc
->error_messages
->size
)
175 return memcached_strerror(memc
, memc
->error_messages
->rc
);
178 return memc
->error_messages
->message
;
181 memcached_return_t
memcached_last_error(memcached_st
*memc
)
184 return MEMCACHED_INVALID_ARGUMENTS
;
186 if (! memc
->error_messages
)
187 return MEMCACHED_SUCCESS
;
189 return memc
->error_messages
->rc
;
192 int memcached_last_error_errno(memcached_st
*memc
)
197 if (! memc
->error_messages
)
200 return memc
->error_messages
->local_errno
;