*
*/
-#include "libmemcached/common.h"
+#include <libmemcached/common.h>
#define MAX_ERROR_LENGTH 2048
struct memcached_error_t
char message[MAX_ERROR_LENGTH];
};
-static void _set(memcached_st *memc, memcached_string_t *str, const memcached_return_t rc, const int local_errno)
+static void _set(memcached_st& memc, memcached_string_t *str, memcached_return_t &rc, const char *at, int local_errno= 0)
{
- WATCHPOINT_ASSERT(memc);
- if (! memc)
- return;
+ (void)at;
+ if (memc.error_messages && memc.error_messages->query_id != memc.query_id)
+ {
+ memcached_error_free(&memc);
+ }
- if (memc->error_messages && memc->error_messages->query_id != memc->query_id)
+ // For memory allocation we use our error since it is a bit more specific
+ if (local_errno == ENOMEM and rc == MEMCACHED_ERRNO)
{
- memcached_error_free(memc);
+ local_errno= ENOMEM;
+ rc= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
}
- memcached_error_t *error;
- error= (struct memcached_error_t *)libmemcached_malloc(memc, sizeof(struct memcached_error_t));
+ if (rc == MEMCACHED_MEMORY_ALLOCATION_FAILURE)
+ {
+ local_errno= ENOMEM;
+ }
- if (! error)
+ if (rc == MEMCACHED_ERRNO and not local_errno)
+ {
+ local_errno= errno;
+ rc= MEMCACHED_ERRNO;
+ }
+
+ if (rc == MEMCACHED_ERRNO and local_errno == ENOTCONN)
+ {
+ rc= MEMCACHED_CONNECTION_FAILURE;
+ }
+
+ memcached_error_t *error= (struct memcached_error_t *)libmemcached_malloc(&memc, sizeof(struct memcached_error_t));
+ if (not error) // Bad business if this happens
return;
- error->root= memc;
- error->query_id= memc->query_id;
+ error->root= &memc;
+ error->query_id= memc.query_id;
error->rc= rc;
error->local_errno= local_errno;
- if (str)
+ if (str and str->size and local_errno)
+ {
+ error->size= (int)snprintf(error->message, MAX_ERROR_LENGTH, "%s(%s), %.*s -> %s",
+ memcached_strerror(&memc, rc),
+ strerror(local_errno),
+ memcached_string_printf(*str), at);
+ }
+ else if (local_errno)
{
- size_t length= str->size > (size_t)MAX_ERROR_LENGTH ? MAX_ERROR_LENGTH : str->size;
- error->size= length;
- memcpy(error->message, str->c_str, error->size);
- error->message[error->size]= 0;
+ error->size= (int)snprintf(error->message, MAX_ERROR_LENGTH, "%s(%s) -> %s",
+ memcached_strerror(&memc, rc),
+ strerror(local_errno), at);
+ }
+ else if (str and str->size)
+ {
+ error->size= (int)snprintf(error->message, MAX_ERROR_LENGTH, "%s, %.*s -> %s",
+ memcached_strerror(&memc, rc),
+ int(str->size), str->c_str, at);
}
else
{
- error->size= 0;
+ error->size= (int)snprintf(error->message, MAX_ERROR_LENGTH, "%s -> %s",
+ memcached_strerror(&memc, rc), at);
}
- error->next= memc->error_messages;
- memc->error_messages= error;
+ error->next= memc.error_messages;
+ memc.error_messages= error;
+}
+
+memcached_return_t memcached_set_error(memcached_st& memc, memcached_return_t rc, const char *at, const char *str, size_t length)
+{
+ memcached_string_t tmp= { str, length };
+ return memcached_set_error(memc, rc, at, tmp);
}
-memcached_return_t memcached_set_error_string(memcached_st *memc, memcached_return_t rc, const char *str, size_t length)
+memcached_return_t memcached_set_error(memcached_server_st& self, memcached_return_t rc, const char *at, const char *str, size_t length)
{
- memcached_string_t tmp;
- tmp.c_str= str;
- tmp.size= length;
- return memcached_set_error_message(memc, rc, &tmp);
+ memcached_string_t tmp= { str, length };
+ return memcached_set_error(self, rc, at, tmp);
}
-memcached_return_t memcached_set_error_message(memcached_st *memc, memcached_return_t rc, memcached_string_t *str)
+memcached_return_t memcached_set_error(memcached_st& memc, memcached_return_t rc, const char *at, memcached_string_t& str)
{
- if (rc == MEMCACHED_SUCCESS)
+ if (memcached_success(rc))
return MEMCACHED_SUCCESS;
- _set(memc, str, rc, 0);
+ _set(memc, &str, rc, at);
return rc;
}
-memcached_return_t memcached_set_error(memcached_st *memc, memcached_return_t rc)
+memcached_return_t memcached_set_error(memcached_server_st& self, memcached_return_t rc, const char *at, memcached_string_t& str)
{
- if (rc == MEMCACHED_SUCCESS)
+ if (memcached_success(rc))
return MEMCACHED_SUCCESS;
- _set(memc, NULL, rc, 0);
+ char hostname_port_message[MAX_ERROR_LENGTH];
+ int size;
+ if (str.size)
+ {
+ size= snprintf(hostname_port_message, sizeof(hostname_port_message), "%.*s, host: %s:%d",
+ memcached_string_printf(str),
+ self.hostname, int(self.port));
+ }
+ else
+ {
+ size= snprintf(hostname_port_message, sizeof(hostname_port_message), "host: %s:%d",
+ self.hostname, int(self.port));
+ }
+
+ memcached_string_t error_host= { hostname_port_message, size };
+
+ if (not self.root)
+ return rc;
+
+ _set(*self.root, &error_host, rc, at);
+
+ return rc;
+}
+
+memcached_return_t memcached_set_error(memcached_server_st& self, memcached_return_t rc, const char *at)
+{
+ if (memcached_success(rc))
+ return MEMCACHED_SUCCESS;
+
+ char hostname_port[NI_MAXHOST +NI_MAXSERV + sizeof("host : ")];
+ int size= snprintf(hostname_port, sizeof(hostname_port), "host: %s:%d", self.hostname, int(self.port));
+
+ memcached_string_t error_host= { hostname_port, size};
+
+ if (not self.root)
+ return rc;
+
+ _set(*self.root, &error_host, rc, at);
+
+ return rc;
+}
+
+memcached_return_t memcached_set_error(memcached_st& self, memcached_return_t rc, const char *at)
+{
+ if (memcached_success(rc))
+ return MEMCACHED_SUCCESS;
+
+ _set(self, NULL, rc, at);
return rc;
}
-memcached_return_t memcached_set_errno(memcached_st *memc, int local_errno, memcached_string_t *str)
+memcached_return_t memcached_set_errno(memcached_st& self, int local_errno, const char *at, const char *str, size_t length)
{
- _set(memc, str, MEMCACHED_ERRNO, local_errno);
+ memcached_string_t tmp= { str, length };
+ return memcached_set_errno(self, local_errno, at, tmp);
+}
- return MEMCACHED_ERRNO;
+memcached_return_t memcached_set_errno(memcached_server_st& self, int local_errno, const char *at, const char *str, size_t length)
+{
+ memcached_string_t tmp= { str, length };
+ return memcached_set_errno(self, local_errno, at, tmp);
+}
+
+memcached_return_t memcached_set_errno(memcached_st& self, int local_errno, const char *at)
+{
+ if (not local_errno)
+ return MEMCACHED_SUCCESS;
+
+ memcached_return_t rc= MEMCACHED_ERRNO;
+ _set(self, NULL, rc, at, local_errno);
+
+ return rc;
+}
+
+memcached_return_t memcached_set_errno(memcached_st& memc, int local_errno, const char *at, memcached_string_t& str)
+{
+ if (not local_errno)
+ return MEMCACHED_SUCCESS;
+
+ memcached_return_t rc= MEMCACHED_ERRNO;
+ _set(memc, &str, rc, at, local_errno);
+
+ return rc;
+}
+
+memcached_return_t memcached_set_errno(memcached_server_st& self, int local_errno, const char *at, memcached_string_t& str)
+{
+ if (not local_errno)
+ return MEMCACHED_SUCCESS;
+
+ char hostname_port_message[MAX_ERROR_LENGTH];
+ int size;
+ if (str.size)
+ {
+ size= snprintf(hostname_port_message, sizeof(hostname_port_message), "%.*s, host: %s:%d",
+ memcached_string_printf(str),
+ self.hostname, int(self.port));
+ }
+ else
+ {
+ size= snprintf(hostname_port_message, sizeof(hostname_port_message), "host: %s:%d",
+ self.hostname, int(self.port));
+ }
+
+ memcached_string_t error_host= { hostname_port_message, size };
+
+ self.cached_errno= local_errno; // Store in the actual server
+
+ memcached_return_t rc= MEMCACHED_ERRNO;
+ if (not self.root)
+ return rc;
+
+ _set(*self.root, &error_host, rc, at, local_errno);
+
+ return rc;
+}
+
+memcached_return_t memcached_set_errno(memcached_server_st& self, int local_errno, const char *at)
+{
+ if (not local_errno)
+ return MEMCACHED_SUCCESS;
+
+ char hostname_port_message[MAX_ERROR_LENGTH];
+ int size = snprintf(hostname_port_message, sizeof(hostname_port_message), "host: %s:%d",
+ self.hostname, int(self.port));
+
+ memcached_string_t error_host= { hostname_port_message, size };
+
+ self.cached_errno= local_errno; // Store in the actual server
+
+ memcached_return_t rc= MEMCACHED_ERRNO;
+ if (not self.root)
+ return rc;
+
+ _set(*self.root, &error_host, rc, at, local_errno);
+
+ return rc;
}
static void _error_print(const memcached_error_t *error)
{
- if (! error)
+ if (not error)
return;
- if (! error->size)
+ if (not error->size)
{
fprintf(stderr, "%s\n", memcached_strerror(NULL, error->rc) );
}
void memcached_error_print(const memcached_st *self)
{
- if (! self)
+ if (not self)
return;
_error_print(self->error_messages);
const char *memcached_last_error_message(memcached_st *memc)
{
- if (! memc)
+ if (not memc)
return memcached_strerror(memc, MEMCACHED_INVALID_ARGUMENTS);
- if (! memc->error_messages)
+ if (not memc->error_messages)
return memcached_strerror(memc, MEMCACHED_SUCCESS);
- if (! memc->error_messages->size)
- {
+ if (not memc->error_messages->size)
return memcached_strerror(memc, memc->error_messages->rc);
- }
return memc->error_messages->message;
}
+
+bool memcached_has_current_error(memcached_st &memc)
+{
+ if (memc.error_messages
+ and memc.error_messages->query_id == memc.query_id
+ and memcached_failed(memc.error_messages->rc))
+ {
+ return true;
+ }
+
+ return false;
+}
+
memcached_return_t memcached_last_error(memcached_st *memc)
{
- if (! memc)
+ if (not memc)
return MEMCACHED_INVALID_ARGUMENTS;
- if (! memc->error_messages)
+ if (not memc->error_messages)
return MEMCACHED_SUCCESS;
return memc->error_messages->rc;
int memcached_last_error_errno(memcached_st *memc)
{
- if (! memc)
+ if (not memc)
return 0;
- if (! memc->error_messages)
+ if (not memc->error_messages)
return 0;
return memc->error_messages->local_errno;