JSONRPC: Preallocate receive buffer based on Content-Length header
Decreases the amount of reallocations needed to receive the response.
This commit is contained in:
parent
cdb1c92c82
commit
5e1a3b1254
1 changed files with 24 additions and 12 deletions
36
util.c
36
util.c
|
@ -38,16 +38,18 @@
|
||||||
#include "miner.h"
|
#include "miner.h"
|
||||||
#include "elist.h"
|
#include "elist.h"
|
||||||
|
|
||||||
struct data_buffer {
|
|
||||||
void *buf;
|
|
||||||
size_t len;
|
|
||||||
size_t allocated;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct header_info {
|
struct header_info {
|
||||||
char *lp_path;
|
char *lp_path;
|
||||||
char *reason;
|
char *reason;
|
||||||
char *stratum_url;
|
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 {
|
struct tq_ent {
|
||||||
|
@ -193,14 +195,20 @@ static size_t all_data_cb(const void *ptr, size_t size, size_t nmemb,
|
||||||
reqalloc = db->len + len + 1;
|
reqalloc = db->len + len + 1;
|
||||||
|
|
||||||
if (reqalloc > db->allocated) {
|
if (reqalloc > db->allocated) {
|
||||||
if (db->len > 0)
|
if (db->len > 0) {
|
||||||
newalloc = db->allocated * 2;
|
newalloc = db->allocated * 2;
|
||||||
else
|
} else {
|
||||||
newalloc = initial_alloc;
|
if (db->headers->content_length > 0)
|
||||||
|
newalloc = db->headers->content_length + 1;
|
||||||
|
else
|
||||||
|
newalloc = initial_alloc;
|
||||||
|
}
|
||||||
|
|
||||||
/* limit the maximum buffer increase */
|
if (db->headers->content_length == 0) {
|
||||||
if (newalloc - db->allocated > max_realloc_increase)
|
/* limit the maximum buffer increase */
|
||||||
newalloc = db->allocated + max_realloc_increase;
|
if (newalloc - db->allocated > max_realloc_increase)
|
||||||
|
newalloc = db->allocated + max_realloc_increase;
|
||||||
|
}
|
||||||
|
|
||||||
/* ensure we have a big enough allocation */
|
/* ensure we have a big enough allocation */
|
||||||
if (reqalloc > newalloc)
|
if (reqalloc > newalloc)
|
||||||
|
@ -273,6 +281,9 @@ static size_t resp_hdr_cb(void *ptr, size_t size, size_t nmemb, void *user_data)
|
||||||
val = NULL;
|
val = NULL;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if (!strcasecmp("Content-Length", key))
|
||||||
|
hi->content_length = strtoul(val, NULL, 10);
|
||||||
|
|
||||||
out:
|
out:
|
||||||
free(key);
|
free(key);
|
||||||
free(val);
|
free(val);
|
||||||
|
@ -338,6 +349,7 @@ json_t *json_rpc_call(CURL *curl, const char *url,
|
||||||
long timeout = (flags & JSON_RPC_LONGPOLL) ? opt_timeout : 30;
|
long timeout = (flags & JSON_RPC_LONGPOLL) ? opt_timeout : 30;
|
||||||
struct header_info hi = {0};
|
struct header_info hi = {0};
|
||||||
|
|
||||||
|
all_data.headers = &hi;
|
||||||
/* it is assumed that 'curl' is freshly [re]initialized at this pt */
|
/* it is assumed that 'curl' is freshly [re]initialized at this pt */
|
||||||
|
|
||||||
if (opt_protocol)
|
if (opt_protocol)
|
||||||
|
|
Loading…
Reference in a new issue