/** \file http_send.c paraslash's http sender */
+#include <sys/types.h>
+#include <dirent.h>
+#include "para.h"
+#include "error.h"
+#include "string.h"
#include "server.cmdline.h"
+#include "afh.h"
+#include "afs.h"
#include "server.h"
#include "http.h"
#include "vss.h"
#include "send.h"
#include "list.h"
#include "close_on_fork.h"
-#include "error.h"
#include "net.h"
-#include "string.h"
#include "fd.h"
+#include "chunk_queue.h"
/** \cond convert sock_addr_in to ascii */
#define CLIENT_ADDR(hc) inet_ntoa((hc)->addr.sin_addr)
/** The whitelist/blacklist. */
static struct list_head access_perm_list;
-struct chunk_queue{
- /** The list of pending chunks for this client. */
- struct list_head q;
- /** The number of pending bytes for this client. */
- unsigned long num_pending;
- unsigned long max_pending;
-};
-
/** Describes one client that connected the tcp port of the http sender. */
struct http_client {
/** The file descriptor of the client. */
/** The position of this client in the client list. */
struct list_head node;
/** The list of pending chunks for this client. */
- struct chunk_queue cq;
-};
-
-/**
- * Describes one queued chunk of the chunk queue.
- *
- * The send function of the http sender checks each client fd for writing. If a
- * client fd is not ready, it tries to queue that chunk for this client until
- * the number of queued bytes exceeds \p MAX_BACKLOG.
- */
-struct queued_chunk {
- /** The number of the queued chunk, -1U means header. */
- unsigned chunk_num;
- /** The number of bytes already sent. */
- unsigned sent;
- /** Position of the chunk in the chunk queue. */
- struct list_head node;
+ struct chunk_queue *cq;
};
/**
static struct sender *self;
-static int cq_enqueue(struct chunk_queue *cq, long unsigned chunk_num,
- size_t sent)
-{
- struct queued_chunk *qc;
- char *buf;
- size_t len;
- int ret;
-
- if (chunk_num != -1U) {
- ret = vss_get_chunk(chunk_num, &buf, &len);
- if (ret < 0)
- return ret;
- } else
- buf = vss_get_header(&len);
- if (cq->num_pending + len > cq->max_pending)
- return -E_QUEUE;
- qc = para_malloc(sizeof(struct queued_chunk));
- cq->num_pending += len;
- qc->chunk_num = chunk_num;
- qc->sent = sent;
- list_add_tail(&qc->node, &cq->q);
- PARA_DEBUG_LOG("%lu bytes queued for %p\n", cq->num_pending, &cq->q);
- return 1;
-}
-
-static struct queued_chunk *cq_peek(struct chunk_queue *cq)
-{
- if (list_empty(&cq->q))
- return NULL;
- return list_entry(cq->q.next, struct queued_chunk, node);
-}
-
-int cq_dequeue(struct chunk_queue *cq)
-{
- struct queued_chunk *qc = cq_peek(cq);
- assert(qc);
- list_del(&qc->node);
- free(qc);
- return 1;
-}
-
-void cq_update(struct chunk_queue *cq, size_t sent)
-{
- struct queued_chunk *qc = cq_peek(cq);
- assert(qc);
- qc->sent += sent;
- cq->num_pending -= sent;
-}
-
-int cq_get(struct queued_chunk *qc, char **buf, size_t *len)
-{
- int ret;
-
- if (qc->chunk_num != -1U) {
- ret = vss_get_chunk(qc->chunk_num, buf, len);
- if (ret < 0)
- return ret;
- } else
- *buf = vss_get_header(len);
- assert(*len > qc->sent);
- *buf += qc->sent;
- *len -= qc->sent;
- return 1;
-}
-
-void cq_init(struct chunk_queue *cq, size_t max_pending)
-{
- INIT_LIST_HEAD(&cq->q);
- cq->max_pending = max_pending;
- cq->num_pending = 0;
-}
-
-void cq_destroy(struct chunk_queue *cq)
-{
- struct queued_chunk *qc, *tmp;
- list_for_each_entry_safe(qc, tmp, &cq->q, node) {
- list_del(&qc->node);
- free(qc);
- }
-}
-
static void http_shutdown_client(struct http_client *hc, const char *msg)
{
PARA_INFO_LOG("shutting down %s on fd %d (%s)\n", CLIENT_ADDR(hc),
numclients--;
close(hc->fd);
del_close_on_fork_list(hc->fd);
- cq_destroy(&hc->cq);
+ cq_destroy(hc->cq);
list_del(&hc->node);
free(hc);
}
return http_send_msg(hc, HTTP_ERR_MSG);
}
-
static int send_queued_chunks(struct http_client *hc)
{
struct queued_chunk *qc;
- while ((qc = cq_peek(&hc->cq))) {
+ while ((qc = cq_peek(hc->cq))) {
char *buf;
size_t len;
int ret = write_ok(hc->fd);
cq_get(qc, &buf, &len);
ret = write(hc->fd, buf, len);
if (ret < 0)
- return -1; /* FIXME */
- cq_update(&hc->cq, ret);
+ return -E_SEND_QUEUED_CHUNK;
+ cq_update(hc->cq, ret);
if (ret != len)
return 1;
- cq_dequeue(&hc->cq);
+ cq_dequeue(hc->cq);
}
return 1;
}
static int queue_chunk_or_shutdown(struct http_client *hc, long unsigned chunk_num,
size_t sent)
{
- int ret = cq_enqueue(&hc->cq, chunk_num, sent);
+ int ret = cq_enqueue(hc->cq, chunk_num, sent);
if (ret < 0)
http_shutdown_client(hc, "queue error");
return ret;
hc->status != HTTP_READY_TO_STREAM)
continue;
if (hc->status == HTTP_READY_TO_STREAM) {
- unsigned hlen;
+ size_t hlen;
char *hbuf = vss_get_header(&hlen);
if (hbuf && hlen > 0 && current_chunk) {
/* need to send header */
- PARA_INFO_LOG("queueing header: %d\n", hlen);
+ PARA_INFO_LOG("queueing header: %zu\n", hlen);
if (queue_chunk_or_shutdown(hc, -1U, 0) < 0)
continue;
} else
goto err_out;
}
hc->status = HTTP_CONNECTED;
- cq_init(&hc->cq, MAX_BACKLOG);
+ hc->cq = cq_new(MAX_BACKLOG);
PARA_INFO_LOG("accepted client #%d: %s (fd %d)\n", numclients,
CLIENT_ADDR(hc), hc->fd);
numclients++;
if (!p)
goto err;
*p = '\0';
- if (!inet_aton(arg, &scd.addr))
+ if (!inet_pton(AF_INET, arg, &scd.addr))
goto err;
scd.netmask = atoi(++p);
if (scd.netmask < 0 || scd.netmask > 32)
projects / paraslash.git / blobdiff