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Add support for JSON-format configuration file

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This commit is contained in:
Jeff Garzik 2011-02-13 03:04:02 -05:00 committed by Jeff Garzik
parent 4e622f2ac2
commit 6d2882937f
3 changed files with 75 additions and 5 deletions
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2
Makefile.am
View File

@ -5,6 +5,8 @@ else
JANSSON_INCLUDES=
endif
EXTRA_DIST = example-cfg.json
SUBDIRS = compat
INCLUDES = $(PTHREAD_FLAGS) -fno-strict-aliasing $(JANSSON_INCLUDES)

66
cpu-miner.c
View File

@ -59,11 +59,12 @@ static bool opt_quiet = false;
static int opt_retries = 10;
static int opt_fail_pause = 30;
static int opt_scantime = 5;
static json_t *opt_config;
static const bool opt_time = true;
static enum sha256_algos opt_algo = ALGO_C;
static int opt_n_threads = 1;
static char *rpc_url = DEF_RPC_URL;
static char *userpass = DEF_RPC_USERPASS;
static char *rpc_url;
static char *userpass;
struct option_help {
@ -75,6 +76,10 @@ static struct option_help options_help[] = {
{ "help",
"(-h) Display this help text" },
{ "config FILE",
"(-c FILE) JSON-format configuration file (default: none)\n"
"See example-cfg.json for an example configuration." },
{ "algo XXX",
"(-a XXX) Specify sha256 implementation:\n"
"\tc\t\tLinux kernel sha256, implemented in C (default)"
@ -126,6 +131,7 @@ static struct option_help options_help[] = {
static struct option options[] = {
{ "help", 0, NULL, 'h' },
{ "algo", 1, NULL, 'a' },
{ "config", 1, NULL, 'c' },
{ "quiet", 0, NULL, 'q' },
{ "debug", 0, NULL, 'D' },
{ "protocol-dump", 0, NULL, 'P' },
@ -419,6 +425,17 @@ static void parse_arg (int key, char *arg)
if (i == ARRAY_SIZE(algo_names))
show_usage();
break;
case 'c': {
json_error_t err;
if (opt_config)
json_decref(opt_config);
opt_config = json_load_file(arg, &err);
if (!json_is_object(opt_config)) {
fprintf(stderr, "JSON decode of %s failed\n", arg);
show_usage();
}
break;
}
case 'q':
opt_quiet = true;
break;
@ -461,30 +478,66 @@ static void parse_arg (int key, char *arg)
strncmp(arg, "https://", 8))
show_usage();
rpc_url = arg;
free(rpc_url);
rpc_url = strdup(arg);
break;
case 1002: /* --userpass */
if (!strchr(arg, ':'))
show_usage();
userpass = arg;
free(userpass);
userpass = strdup(arg);
break;
default:
show_usage();
}
}
static void parse_config(void)
{
int i;
json_t *val;
if (!json_is_object(opt_config))
return;
for (i = 0; i < ARRAY_SIZE(options); i++) {
if (!options[i].name)
break;
if (!strcmp(options[i].name, "config"))
continue;
val = json_object_get(opt_config, options[i].name);
if (!val)
continue;
if (options[i].has_arg && json_is_string(val)) {
char *s = strdup(json_string_value(val));
if (!s)
break;
parse_arg(options[i].val, s);
free(s);
} else if (!options[i].has_arg && json_is_true(val))
parse_arg(options[i].val, "");
else
fprintf(stderr, "JSON option %s invalid\n",
options[i].name);
}
}
static void parse_cmdline(int argc, char *argv[])
{
int key;
while (1) {
key = getopt_long(argc, argv, "a:qDPr:s:t:h?", options, NULL);
key = getopt_long(argc, argv, "a:c:qDPr:s:t:h?", options, NULL);
if (key < 0)
break;
parse_arg(key, optarg);
}
parse_config();
}
int main (int argc, char *argv[])
@ -492,6 +545,9 @@ int main (int argc, char *argv[])
int i;
pthread_t *t_all;
rpc_url = strdup(DEF_RPC_URL);
userpass = strdup(DEF_RPC_USERPASS);
/* parse command line */
parse_cmdline(argc, argv);

12
example-cfg.json Normal file
View File

@ -0,0 +1,12 @@
{
"_comment" : "Any command line argument may be used in this file",
"url" : "http://127.0.0.1:8332",
"userpass" : "rpcuser:rpcpass",
"algo" : "4way",
"threads" : "4",
"quiet" : true,
"debug" : true
}