#include <sys/stat.h>
#include <sys/time.h>
-#include "anet.h"
+#include "hiredis.h"
#include "sds.h"
-#include "adlist.h"
#include "zmalloc.h"
#include "linenoise.h"
#define REDIS_NOTUSED(V) ((void) V)
+static redisContext *context;
static struct config {
char *hostip;
int hostport;
char *historyfile;
} config;
-static int cliReadReply(int fd);
static void usage();
/*------------------------------------------------------------------------------
return mst;
}
-static void printStringRepr(char *s, int len) {
- printf("\"");
- while(len--) {
- switch(*s) {
- case '\\':
- case '"':
- printf("\\%c",*s);
- break;
- case '\n': printf("\\n"); break;
- case '\r': printf("\\r"); break;
- case '\t': printf("\\t"); break;
- case '\a': printf("\\a"); break;
- case '\b': printf("\\b"); break;
- default:
- if (isprint(*s))
- printf("%c",*s);
- else
- printf("\\x%02x",(unsigned char)*s);
- break;
- }
- s++;
- }
- printf("\"");
-}
-
/*------------------------------------------------------------------------------
* Networking / parsing
*--------------------------------------------------------------------------- */
+/* Send AUTH command to the server */
+static int cliAuth() {
+ redisReply *reply;
+ if (config.auth == NULL) return REDIS_OK;
+
+ reply = redisCommand(context,"AUTH %s",config.auth);
+ if (reply != NULL) {
+ freeReplyObject(reply);
+ return REDIS_OK;
+ }
+ return REDIS_ERR;
+}
+
+/* Send SELECT dbnum to the server */
+static int cliSelect() {
+ redisReply *reply;
+ char dbnum[16];
+ if (config.dbnum == 0) return REDIS_OK;
+
+ snprintf(dbnum,sizeof(dbnum),"%d",config.dbnum);
+ reply = redisCommand(context,"SELECT %s",dbnum);
+ if (reply != NULL) {
+ freeReplyObject(reply);
+ return REDIS_OK;
+ }
+ return REDIS_ERR;
+}
+
/* Connect to the client. If force is not zero the connection is performed
* even if there is already a connected socket. */
static int cliConnect(int force) {
- char err[ANET_ERR_LEN];
- static int fd = ANET_ERR;
+ if (context == NULL || force) {
+ if (context != NULL)
+ redisFree(context);
- if (fd == ANET_ERR || force) {
- if (force) close(fd);
if (config.hostsocket == NULL) {
- fd = anetTcpConnect(err,config.hostip,config.hostport);
+ context = redisConnect(config.hostip,config.hostport);
} else {
- fd = anetUnixConnect(err,config.hostsocket);
+ context = redisConnectUnix(config.hostsocket);
}
- if (fd == ANET_ERR) {
+
+ if (context->err) {
fprintf(stderr,"Could not connect to Redis at ");
if (config.hostsocket == NULL)
- fprintf(stderr,"%s:%d: %s",config.hostip,config.hostport,err);
+ fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,context->errstr);
else
- fprintf(stderr,"%s: %s",config.hostsocket,err);
- return -1;
+ fprintf(stderr,"%s: %s\n",config.hostsocket,context->errstr);
+ redisFree(context);
+ context = NULL;
+ return REDIS_ERR;
}
- anetTcpNoDelay(NULL,fd);
- }
- return fd;
-}
-
-static sds cliReadLine(int fd) {
- sds line = sdsempty();
- while(1) {
- char c;
- ssize_t ret;
-
- ret = read(fd,&c,1);
- if (ret <= 0) {
- sdsfree(line);
- return NULL;
- } else if ((ret == 0) || (c == '\n')) {
- break;
- } else {
- line = sdscatlen(line,&c,1);
- }
+ /* Do AUTH and select the right DB. */
+ if (cliAuth() != REDIS_OK)
+ return REDIS_ERR;
+ if (cliSelect() != REDIS_OK)
+ return REDIS_ERR;
}
- return sdstrim(line,"\r\n");
+ return REDIS_OK;
}
-static int cliReadSingleLineReply(int fd, int quiet) {
- sds reply = cliReadLine(fd);
-
- if (reply == NULL) return 1;
- if (!quiet)
- printf("%s", reply);
- sdsfree(reply);
- return 0;
+static void cliPrintContextErrorAndExit() {
+ if (context == NULL) return;
+ fprintf(stderr,"Error: %s\n",context->errstr);
+ exit(1);
}
-static int cliReadBulkReply(int fd) {
- sds replylen = cliReadLine(fd);
- char *reply, crlf[2];
- int bulklen;
-
- if (replylen == NULL) return 1;
- bulklen = atoi(replylen);
- if (bulklen == -1) {
- sdsfree(replylen);
- printf("(nil)\n");
- return 0;
- }
- reply = zmalloc(bulklen);
- anetRead(fd,reply,bulklen);
- anetRead(fd,crlf,2);
- if (config.raw_output || !config.tty) {
- if (bulklen && fwrite(reply,bulklen,1,stdout) == 0) {
- zfree(reply);
- return 1;
+static sds cliFormatReply(redisReply *r, char *prefix) {
+ sds out = sdsempty();
+ switch (r->type) {
+ case REDIS_REPLY_ERROR:
+ out = sdscat(out,prefix);
+ if (config.tty) out = sdscat(out,"(error) ");
+ out = sdscatprintf(out,"%s\n", r->str);
+ break;
+ case REDIS_REPLY_STATUS:
+ out = sdscat(out,prefix);
+ out = sdscat(out,r->str);
+ out = sdscat(out,"\n");
+ break;
+ case REDIS_REPLY_INTEGER:
+ out = sdscat(out,prefix);
+ if (config.tty) out = sdscat(out,"(integer) ");
+ out = sdscatprintf(out,"%lld\n",r->integer);
+ break;
+ case REDIS_REPLY_STRING:
+ out = sdscat(out,prefix);
+ if (config.raw_output || !config.tty) {
+ out = sdscatlen(out,r->str,r->len);
+ } else {
+ /* If you are producing output for the standard output we want
+ * a more interesting output with quoted characters and so forth */
+ out = sdscatrepr(out,r->str,r->len);
+ out = sdscat(out,"\n");
}
- } else {
- /* If you are producing output for the standard output we want
- * a more interesting output with quoted characters and so forth */
- printStringRepr(reply,bulklen);
- }
- zfree(reply);
- return 0;
-}
-
-static int cliReadMultiBulkReply(int fd) {
- sds replylen = cliReadLine(fd);
- int elements, c = 1;
- int retval = 0;
-
- if (replylen == NULL) return 1;
- elements = atoi(replylen);
- if (elements == -1) {
- sdsfree(replylen);
- printf("(nil)\n");
- return 0;
- }
- if (elements == 0) {
- printf("(empty list or set)\n");
- }
- while(elements--) {
- if (config.tty) printf("%d. ", c);
- if (cliReadReply(fd)) retval = 1;
- if (elements) printf("%c",config.mb_sep);
- c++;
- }
- return retval;
-}
-
-static int cliReadReply(int fd) {
- char type;
- int nread;
-
- if ((nread = anetRead(fd,&type,1)) <= 0) {
- if (config.shutdown) return 0;
- if (config.interactive &&
- (nread == 0 || (nread == -1 && errno == ECONNRESET)))
- {
- return ECONNRESET;
+ break;
+ case REDIS_REPLY_NIL:
+ out = sdscat(out,prefix);
+ out = sdscat(out,"(nil)\n");
+ break;
+ case REDIS_REPLY_ARRAY:
+ if (r->elements == 0) {
+ out = sdscat(out,prefix);
+ out = sdscat(out,"(empty list or set)\n");
} else {
- printf("I/O error while reading from socket: %s",strerror(errno));
- exit(1);
+ unsigned int i;
+ sds tmp;
+
+ for (i = 0; i < r->elements; i++) {
+ tmp = cliFormatReply(r->element[i],prefix);
+ out = sdscat(out,prefix);
+ out = sdscatlen(out,tmp,sdslen(tmp));
+ sdsfree(tmp);
+ }
}
- }
- switch(type) {
- case '-':
- if (config.tty) printf("(error) ");
- cliReadSingleLineReply(fd,0);
- return 1;
- case '+':
- return cliReadSingleLineReply(fd,0);
- case ':':
- if (config.tty) printf("(integer) ");
- return cliReadSingleLineReply(fd,0);
- case '$':
- return cliReadBulkReply(fd);
- case '*':
- return cliReadMultiBulkReply(fd);
+ break;
default:
- printf("protocol error, got '%c' as reply type byte", type);
- return 1;
+ fprintf(stderr,"Unknown reply type: %d\n", r->type);
+ exit(1);
}
+ return out;
}
-static int selectDb(int fd) {
- int retval;
- sds cmd;
- char type;
-
- if (config.dbnum == 0)
- return 0;
-
- cmd = sdsempty();
- cmd = sdscatprintf(cmd,"SELECT %d\r\n",config.dbnum);
- anetWrite(fd,cmd,sdslen(cmd));
- anetRead(fd,&type,1);
- if (type <= 0 || type != '+') return 1;
- retval = cliReadSingleLineReply(fd,1);
- if (retval) {
- return retval;
+static int cliReadReply() {
+ redisReply *reply;
+ sds out;
+
+ if (redisGetReply(context,(void**)&reply) != REDIS_OK) {
+ if (config.shutdown)
+ return REDIS_OK;
+ if (config.interactive) {
+ /* Filter cases where we should reconnect */
+ if (context->err == REDIS_ERR_IO && errno == ECONNRESET)
+ return REDIS_ERR;
+ if (context->err == REDIS_ERR_EOF)
+ return REDIS_ERR;
+ }
+ cliPrintContextErrorAndExit();
+ return REDIS_ERR; /* avoid compiler warning */
}
- return 0;
+
+ out = cliFormatReply(reply,"");
+ freeReplyObject(reply);
+ fwrite(out,sdslen(out),1,stdout);
+ sdsfree(out);
+ return REDIS_OK;
}
static void showInteractiveHelp(void) {
static int cliSendCommand(int argc, char **argv, int repeat) {
char *command = argv[0];
- int fd, j, retval = 0;
- sds cmd;
+ size_t *argvlen;
+ int j;
config.raw_output = !strcasecmp(command,"info");
if (!strcasecmp(command,"help")) {
showInteractiveHelp();
- return 0;
+ return REDIS_OK;
}
if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
if (!strcasecmp(command,"subscribe") ||
!strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
- if ((fd = cliConnect(0)) == -1) return 1;
- /* Select db number */
- retval = selectDb(fd);
- if (retval) {
- fprintf(stderr,"Error setting DB num\n");
- return 1;
- }
-
- /* Build the command to send */
- cmd = sdscatprintf(sdsempty(),"*%d\r\n",argc);
- for (j = 0; j < argc; j++) {
- cmd = sdscatprintf(cmd,"$%lu\r\n",
- (unsigned long)sdslen(argv[j]));
- cmd = sdscatlen(cmd,argv[j],sdslen(argv[j]));
- cmd = sdscatlen(cmd,"\r\n",2);
- }
+ /* Setup argument length */
+ argvlen = malloc(argc*sizeof(size_t));
+ for (j = 0; j < argc; j++)
+ argvlen[j] = sdslen(argv[j]);
while(repeat--) {
- anetWrite(fd,cmd,sdslen(cmd));
+ redisAppendCommandArgv(context,argc,(const char**)argv,argvlen);
while (config.monitor_mode) {
- if (cliReadSingleLineReply(fd,0)) exit(1);
- printf("\n");
+ if (cliReadReply() != REDIS_OK) exit(1);
}
if (config.pubsub_mode) {
- printf("Reading messages... (press Ctrl-c to quit)\n");
+ printf("Reading messages... (press Ctrl-C to quit)\n");
while (1) {
- cliReadReply(fd);
- printf("\n\n");
+ if (cliReadReply() != REDIS_OK) exit(1);
}
}
- retval = cliReadReply(fd);
- if (!config.raw_output && config.tty) printf("\n");
- if (retval) return retval;
+ if (cliReadReply() != REDIS_OK)
+ return REDIS_ERR;
}
- return 0;
+ return REDIS_OK;
}
/*------------------------------------------------------------------------------
int lastarg = i==argc-1;
if (!strcmp(argv[i],"-h") && !lastarg) {
- char *ip = zmalloc(32);
- if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
- printf("Can't resolve %s\n", argv[i]);
- exit(1);
- }
- config.hostip = ip;
+ config.hostip = argv[i+1];
i++;
} else if (!strcmp(argv[i],"-h") && lastarg) {
usage();
{
exit(0);
} else {
- int err;
long long start_time = mstime(), elapsed;
- if ((err = cliSendCommand(argc, argv, 1)) != 0) {
- if (err == ECONNRESET) {
- printf("Reconnecting... ");
- fflush(stdout);
- if (cliConnect(1) == -1) exit(1);
- printf("OK\n");
- cliSendCommand(argc,argv,1);
- }
+ if (cliSendCommand(argc,argv,1) != REDIS_OK) {
+ printf("Reconnecting... ");
+ fflush(stdout);
+ if (cliConnect(1) != REDIS_OK) exit(1);
+ printf("OK\n");
+
+ /* If we still cannot send the command,
+ * print error and abort. */
+ if (cliSendCommand(argc,argv,1) != REDIS_OK)
+ cliPrintContextErrorAndExit();
}
elapsed = mstime()-start_time;
if (elapsed > 500) printf("%.2f seconds\n",
argc -= firstarg;
argv += firstarg;
- if (config.auth != NULL) {
- char *authargv[2];
- int dbnum = config.dbnum;
-
- /* We need to save the real configured database number and set it to
- * zero here, otherwise cliSendCommand() will try to perform the
- * SELECT command before the authentication, and it will fail. */
- config.dbnum = 0;
- authargv[0] = "AUTH";
- authargv[1] = config.auth;
- cliSendCommand(2, convertToSds(2, authargv), 1);
- config.dbnum = dbnum; /* restore the right DB number */
- }
+ /* Try to connect */
+ if (cliConnect(0) != REDIS_OK) exit(1);
/* Start interactive mode when no command is provided */
if (argc == 0) repl();
projects / redis.git / commitdiff
