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author | Simon Rettberg | 2013-07-31 21:45:00 +0200 |
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committer | Simon Rettberg | 2013-07-31 21:45:00 +0200 |
commit | e7b3781c3e5c105fcd80a75546b9ab75eae8a2c9 (patch) | |
tree | 90e523671bb2ea349639b744b5bc3ee81f512fb7 /src/server/helper.h | |
parent | [SERVER] Still working on the uplink... Almost there (diff) | |
download | dnbd3-e7b3781c3e5c105fcd80a75546b9ab75eae8a2c9.tar.gz dnbd3-e7b3781c3e5c105fcd80a75546b9ab75eae8a2c9.tar.xz dnbd3-e7b3781c3e5c105fcd80a75546b9ab75eae8a2c9.zip |
[SERVER] Uplink handing complete (untested, as alt servers can't be defined yet, so prepare for lots of fixes ;))
Diffstat (limited to 'src/server/helper.h')
-rw-r--r-- | src/server/helper.h | 67 |
1 files changed, 33 insertions, 34 deletions
diff --git a/src/server/helper.h b/src/server/helper.h index daa6695..e068abd 100644 --- a/src/server/helper.h +++ b/src/server/helper.h @@ -8,6 +8,9 @@ #include <unistd.h> #include "../types.h" +#define ERROR_GOTO(jumplabel, errormsg) do { memlogf(errormsg); goto jumplabel; } while (0); +#define ERROR_GOTO_VA(jumplabel, errormsg, ...) do { memlogf(errormsg, __VA_ARGS__); goto jumplabel; } while (0); + char parse_address(char *string, dnbd3_host_t *host); char host_to_string(const dnbd3_host_t *host, char *target, size_t targetlen); char is_valid_namespace(char *namespace); @@ -17,11 +20,9 @@ void remove_trailing_slash(char *string); int file_exists(char *file); int file_writable(char *file); -static inline int is_same_server(const dnbd3_host_t *const a, const dnbd3_host_t *const b) +static inline int is_same_server(const dnbd3_host_t * const a, const dnbd3_host_t * const b) { - return (a->type == b->type) - && (a->port == b->port) - && (0 == memcmp(a->addr, b->addr, (a->type == AF_INET ? 4 : 16))); + return (a->type == b->type) && (a->port == b->port) && (0 == memcmp( a->addr, b->addr, (a->type == AF_INET ? 4 : 16) )); } /** @@ -29,25 +30,24 @@ static inline int is_same_server(const dnbd3_host_t *const a, const dnbd3_host_t */ static inline int send_data(int client_sock, void *data_in, int len) { - if (len <= 0) // Nothing to send - return 1; + if ( len <= 0 ) // Nothing to send + return 1; char *data = data_in; // Needed for pointer arithmetic int ret, i; for (i = 0; i < 3; ++i) // Retry at most 3 times, each try takes at most 0.5 seconds (socket timeout) - { - ret = send(client_sock, data, len, 0); - if (ret == 0) // Connection closed + { + ret = send( client_sock, data, len, 0 ); + if ( ret == 0 ) // Connection closed + return 0; + if ( ret < 0 ) { + if ( errno != EAGAIN ) // Some unexpected error return 0; - if (ret < 0) - { - if (errno != EAGAIN) // Some unexpected error - return 0; - usleep(1000); // 1ms + usleep( 1000 ); // 1ms continue; } len -= ret; - if (len <= 0) // Sent everything - return 1; + if ( len <= 0 ) // Sent everything + return 1; data += ret; // move target buffer pointer } return 0; @@ -58,25 +58,24 @@ static inline int send_data(int client_sock, void *data_in, int len) */ static inline int recv_data(int client_sock, void *buffer_out, int len) { - if (len <= 0) // Nothing to receive - return 1; + if ( len <= 0 ) // Nothing to receive + return 1; char *data = buffer_out; // Needed for pointer arithmetic int ret, i; for (i = 0; i < 3; ++i) // Retry at most 3 times, each try takes at most 0.5 seconds (socket timeout) - { - ret = recv(client_sock, data, len, MSG_WAITALL); - if (ret == 0) // Connection closed + { + ret = recv( client_sock, data, len, MSG_WAITALL ); + if ( ret == 0 ) // Connection closed + return 0; + if ( ret < 0 ) { + if ( errno != EAGAIN ) // Some unexpected error return 0; - if (ret < 0) - { - if (errno != EAGAIN) // Some unexpected error - return 0; - usleep(1000); // 1ms + usleep( 1000 ); // 1ms continue; } len -= ret; - if (len <= 0) // Received everything - return 1; + if ( len <= 0 ) // Received everything + return 1; data += ret; // move target buffer pointer } return 0; @@ -84,12 +83,12 @@ static inline int recv_data(int client_sock, void *buffer_out, int len) static inline int strend(char *string, char *suffix) { - if (string == NULL) return FALSE; - if (suffix == NULL || *suffix == '\0') return TRUE; - const size_t len1 = strlen(string); - const size_t len2 = strlen(suffix); - if (len2 > len1) return FALSE; - return strcmp(string + len1 - len2, suffix) == 0; + if ( string == NULL ) return FALSE; + if ( suffix == NULL || *suffix == '\0' ) return TRUE; + const size_t len1 = strlen( string ); + const size_t len2 = strlen( suffix ); + if ( len2 > len1 ) return FALSE; + return strcmp( string + len1 - len2, suffix ) == 0; } #endif |