Add API commands and modify output to support pool quota displaying and changing.

API-README

@@ -188,6 +188,10 @@ The list of requests - a (*) means it requires privileged access - and replies:
                               stating the results of changing pool priorities
                               See usage below
 
+ poolquota|N,Q (*)
+               none           There is no reply section just the STATUS section
+                              stating the results of changing pool quota to Q
+
  disablepool|N (*)
                none           There is no reply section just the STATUS section
                               stating the results of disabling pool N
@@ -486,6 +490,16 @@ miner.php - an example web page to access the API
 Feature Changelog for external applications using the API:
 
 
+API V1.30 (cgminer v3.4.3)
+
+Added API command:
+ 'poolquota' - Set pool quota for load-balance strategy.
+
+Modified API command:
+ 'pools' - add 'Quota'
+
+---------
+
 API V1.29 (cgminer v3.4.1)
 
 Muticast identification added to the API
@@ -578,7 +592,7 @@ Added API commands:
 Modified API commands:
  'summary' - add 'Best Share'
 
-Modifed output:
+Modified output:
  each MMQ shows up as 4 devices, each with it's own stats
 
 ----------

api.c

@@ -1,6 +1,6 @@
 /*
  * Copyright 2011-2013 Andrew Smith
- * Copyright 2011-2012 Con Kolivas
+ * Copyright 2011-2013 Con Kolivas
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
@@ -135,7 +135,7 @@ static const char SEPARATOR = '|';
 #define SEPSTR "|"
 static const char GPUSEP = ',';
 
-static const char *APIVERSION = "1.29";
+static const char *APIVERSION = "1.30";
 static const char *DEAD = "Dead";
 #if defined(HAVE_OPENCL) || defined(HAVE_AN_FPGA) || defined(HAVE_AN_ASIC)
 static const char *SICK = "Sick";
@@ -422,6 +422,9 @@ static const char *JSON_PARAMETER = "parameter";
 #define MSG_ASCSETERR 120
 #endif
 
+#define MSG_INVNEG 121
+#define MSG_SETQUOTA 122
+
 enum code_severity {
 	SEVERITY_ERR,
 	SEVERITY_WARN,
@@ -582,6 +585,8 @@ struct CODES {
  { SEVERITY_SUCC,  MSG_SETCONFIG,PARAM_SET,	"Set config '%s' to %d" },
  { SEVERITY_ERR,   MSG_UNKCON,	PARAM_STR,	"Unknown config '%s'" },
  { SEVERITY_ERR,   MSG_INVNUM,	PARAM_BOTH,	"Invalid number (%d) for '%s' range is 0-9999" },
+ { SEVERITY_ERR,   MSG_INVNEG,	PARAM_BOTH,	"Invalid negative number (%d) for '%s'" },
+ { SEVERITY_SUCC,  MSG_SETQUOTA,PARAM_SET,	"Set pool '%s' to quota %d'" },
  { SEVERITY_ERR,   MSG_CONPAR,	PARAM_NONE,	"Missing config parameters 'name,N'" },
  { SEVERITY_ERR,   MSG_CONVAL,	PARAM_STR,	"Missing config value N for '%s,N'" },
  { SEVERITY_SUCC,  MSG_USBSTA,	PARAM_NONE,	"USB Statistics" },
@@ -2145,6 +2150,7 @@ static void poolstatus(struct io_data *io_data, __maybe_unused SOCKETTYPE c, __m
 		root = api_add_escape(root, "URL", pool->rpc_url, false);
 		root = api_add_string(root, "Status", status, false);
 		root = api_add_int(root, "Priority", &(pool->prio), false);
+		root = api_add_int(root, "Quota", &pool->quota, false);
 		root = api_add_string(root, "Long Poll", lp, false);
 		root = api_add_uint(root, "Getworks", &(pool->getwork_requested), false);
 		root = api_add_int(root, "Accepted", &(pool->accepted), false);
@@ -2617,6 +2623,47 @@ static void poolpriority(struct io_data *io_data, __maybe_unused SOCKETTYPE c, c
 	message(io_data, MSG_POOLPRIO, 0, NULL, isjson);
 }
 
+static void poolquota(struct io_data *io_data, __maybe_unused SOCKETTYPE c, char *param, bool isjson, __maybe_unused char group)
+{
+	struct pool *pool;
+	int quota, id;
+	char *comma;
+
+	if (total_pools == 0) {
+		message(io_data, MSG_NOPOOL, 0, NULL, isjson);
+		return;
+	}
+
+	if (param == NULL || *param == '\0') {
+		message(io_data, MSG_MISPID, 0, NULL, isjson);
+		return;
+	}
+
+	comma = strchr(param, ',');
+	if (!comma) {
+		message(io_data, MSG_CONVAL, 0, param, isjson);
+		return;
+	}
+
+	*(comma++) = '\0';
+
+	id = atoi(param);
+	if (id < 0 || id >= total_pools) {
+		message(io_data, MSG_INVPID, id, NULL, isjson);
+		return;
+	}
+	pool = pools[id];
+
+	quota = atoi(comma);
+	if (quota < 0) {
+		message(io_data, MSG_INVNEG, quota, pool->rpc_url, isjson);
+		return;
+	}
+
+	pool->quota = quota;
+	message(io_data, MSG_SETQUOTA, quota, pool->rpc_url, isjson);
+}
+
 static void disablepool(struct io_data *io_data, __maybe_unused SOCKETTYPE c, char *param, bool isjson, __maybe_unused char group)
 {
 	struct pool *pool;
@@ -3831,6 +3878,7 @@ struct CMDS {
 	{ "switchpool",		switchpool,	true },
 	{ "addpool",		addpool,	true },
 	{ "poolpriority",	poolpriority,	true },
+	{ "poolquota",		poolquota,	true },
 	{ "enablepool",		enablepool,	true },
 	{ "disablepool",	disablepool,	true },
 	{ "removepool",		removepool,	true },