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Merge pull request #204 from EchterAgo/jsonrpc_speedup

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JSONRPC: Increase network performance
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pooler 2020-11-10 14:06:07 +00:00 committed by GitHub
commit 872f02b1f0
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1 changed files with 48 additions and 15 deletions
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63
util.c
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@ -38,15 +38,18 @@
#include "miner.h"
#include "elist.h"
struct data_buffer {
void *buf;
size_t len;
};
struct header_info {
char *lp_path;
char *reason;
char *stratum_url;
size_t content_length;
};
struct data_buffer {
void *buf;
size_t len;
size_t allocated;
struct header_info *headers;
};
struct tq_ent {
@ -182,21 +185,47 @@ static size_t all_data_cb(const void *ptr, size_t size, size_t nmemb,
{
struct data_buffer *db = user_data;
size_t len = size * nmemb;
size_t oldlen, newlen;
size_t newalloc, reqalloc;
void *newmem;
static const unsigned char zero = 0;
static const size_t max_realloc_increase = 8 * 1024 * 1024;
static const size_t initial_alloc = 16 * 1024;
oldlen = db->len;
newlen = oldlen + len;
/* minimum required allocation size */
reqalloc = db->len + len + 1;
newmem = realloc(db->buf, newlen + 1);
if (!newmem)
return 0;
if (reqalloc > db->allocated) {
if (db->len > 0) {
newalloc = db->allocated * 2;
} else {
if (db->headers->content_length > 0)
newalloc = db->headers->content_length + 1;
else
newalloc = initial_alloc;
}
db->buf = newmem;
db->len = newlen;
memcpy(db->buf + oldlen, ptr, len);
memcpy(db->buf + newlen, &zero, 1); /* null terminate */
if (db->headers->content_length == 0) {
/* limit the maximum buffer increase */
if (newalloc - db->allocated > max_realloc_increase)
newalloc = db->allocated + max_realloc_increase;
}
/* ensure we have a big enough allocation */
if (reqalloc > newalloc)
newalloc = reqalloc;
newmem = realloc(db->buf, newalloc);
if (!newmem)
return 0;
db->buf = newmem;
db->allocated = newalloc;
}
memcpy(db->buf + db->len, ptr, len); /* append new data */
memcpy(db->buf + db->len + len, &zero, 1); /* null terminate */
db->len += len;
return len;
}
@ -252,6 +281,9 @@ static size_t resp_hdr_cb(void *ptr, size_t size, size_t nmemb, void *user_data)
val = NULL;
}
if (!strcasecmp("Content-Length", key))
hi->content_length = strtoul(val, NULL, 10);
out:
free(key);
free(val);
@ -317,6 +349,7 @@ json_t *json_rpc_call(CURL *curl, const char *url,
long timeout = (flags & JSON_RPC_LONGPOLL) ? opt_timeout : 30;
struct header_info hi = {0};
all_data.headers = &hi;
/* it is assumed that 'curl' is freshly [re]initialized at this pt */
if (opt_protocol)