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written more ursd code

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hyung-hwan 2014-08-27 17:39:31 +00:00
parent 4195be2c84
commit f27f5a650e
4 changed files with 418 additions and 180 deletions
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569
qse/cmd/http/ursd.c
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@ -18,8 +18,6 @@
#include <signal.h> #include <signal.h>
#include <locale.h> #include <locale.h>
#include <stdio.h> #include <stdio.h>
#include <string.h>
#include <stdlib.h>
#if defined(_WIN32) #if defined(_WIN32)
# include <winsock2.h> # include <winsock2.h>
@ -94,32 +92,45 @@ struct xreq_t
xreq_t* next; xreq_t* next;
}; };
typedef struct xpio_t xpio_t; typedef struct rewriter_t rewriter_t;
struct xpio_t struct rewriter_t
{ {
int index; /* index in ursd->rewriters */
qse_pio_t* pio; qse_pio_t* pio;
int busy;
/* ------------------ */
unsigned int free: 1;
unsigned int busy: 1;
unsigned int faulty: 1;
unsigned int pio_in_in_mux: 1;
struct struct
{ {
qse_skad_t from; qse_skad_t from;
qse_sck_len_t fromlen; qse_sck_len_t fromlen;
qse_uint16_t urllen;
qse_uint16_t urlpos;
qse_uint8_t buf[65535]; qse_uint8_t buf[65535];
qse_uint32_t outlen; /* length of output read from the rewriter */
} req; } req;
xpio_t* prev; rewriter_t* prev;
xpio_t* next; rewriter_t* next;
}; };
typedef struct ursd_t ursd_t; typedef struct ursd_t ursd_t;
struct ursd_t struct ursd_t
{ {
qse_mmgr_t* mmgr;
qse_char_t* cmdline;
qse_size_t total; qse_size_t total;
qse_size_t nfree; qse_size_t nfree;
xpio_t* xpios; rewriter_t* rewriters;
xpio_t* free_xpio; rewriter_t* free_rewriter;
xpio_t* busy_xpio; rewriter_t* busy_rewriter;
qse_sck_hnd_t sck; qse_sck_hnd_t sck;
qse_mux_t* mux; qse_mux_t* mux;
@ -130,7 +141,8 @@ struct ursd_t
#define TYPE_SOCKET 0 #define TYPE_SOCKET 0
#define TYPE_PIO 1 #define TYPE_PIO_OUT 1
#define TYPE_PIO_IN 2
#define MAKE_MUX_DATA(type,index) ((qse_uintptr_t)type | ((qse_uintptr_t)index << 4)) #define MAKE_MUX_DATA(type,index) ((qse_uintptr_t)type | ((qse_uintptr_t)index << 4))
#define GET_TYPE_FROM_MUX_DATA(md) ((md) & 0xF) #define GET_TYPE_FROM_MUX_DATA(md) ((md) & 0xF)
@ -142,71 +154,6 @@ struct mux_xtn_t
}; };
typedef struct mux_xtn_t mux_xtn_t; typedef struct mux_xtn_t mux_xtn_t;
static void chain_to_free_list (ursd_t* ursd, xpio_t* xpio)
{
xpio->busy = 0;
xpio->prev = QSE_NULL;
xpio->next = ursd->free_xpio;
if (ursd->free_xpio) ursd->free_xpio->prev = xpio;
ursd->free_xpio = xpio;
ursd->nfree++;
}
static xpio_t* dechain_from_free_list (ursd_t* ursd, xpio_t* xpio)
{
if (xpio->next) xpio->next->prev = xpio->prev;
if (xpio == ursd->free_xpio) ursd->free_xpio = xpio->next;
else xpio->prev->next = xpio->next;
ursd->nfree--;
return xpio;
}
static void chain_to_busy_list (ursd_t* ursd, xpio_t* xpio)
{
xpio->busy = 1;
xpio->prev = QSE_NULL;
xpio->next = ursd->busy_xpio;
if (ursd->busy_xpio) ursd->busy_xpio->prev = xpio;
ursd->busy_xpio = xpio;
}
static xpio_t* dechain_from_busy_list (ursd_t* ursd, xpio_t* xpio)
{
if (xpio->next) xpio->next->prev = xpio->prev;
if (xpio == ursd->busy_xpio) ursd->busy_xpio = xpio->next;
else xpio->prev->next = xpio->next;
return xpio;
}
static xreq_t* enqueue_request (ursd_t* ursd, urs_pkt_t* pkt)
{
return QSE_NULL;
}
static int insert_to_mux (qse_mux_t* mux, qse_mux_hnd_t handle, int type, int index)
{
qse_mux_evt_t evt;
memset (&evt, 0, QSE_SIZEOF(evt));
evt.hnd = handle;
evt.mask = QSE_MUX_IN;
evt.data = MAKE_MUX_DATA(type, index);
return qse_mux_insert (mux, &evt);
}
static int delete_from_mux (qse_mux_t* mux, qse_mux_hnd_t handle, int type, int index)
{
qse_mux_evt_t evt;
memset (&evt, 0, QSE_SIZEOF(evt));
evt.hnd = handle;
evt.mask = QSE_MUX_IN;
evt.data = MAKE_MUX_DATA(type, index);
return qse_mux_delete (mux, &evt);
}
static qse_sck_hnd_t open_server_socket (int proto, const qse_nwad_t* bindnwad) static qse_sck_hnd_t open_server_socket (int proto, const qse_nwad_t* bindnwad)
{ {
qse_sck_hnd_t s = QSE_INVALID_SCKHND; qse_sck_hnd_t s = QSE_INVALID_SCKHND;
@ -225,6 +172,8 @@ static qse_sck_hnd_t open_server_socket (int proto, const qse_nwad_t* bindnwad)
goto oops; goto oops;
} }
/* TODO: increase the socket buffer size, especially the output buffer size */
#if defined(FD_CLOEXEC) #if defined(FD_CLOEXEC)
flag = fcntl (s, F_GETFD); flag = fcntl (s, F_GETFD);
if (flag >= 0) fcntl (s, F_SETFD, flag | FD_CLOEXEC); if (flag >= 0) fcntl (s, F_SETFD, flag | FD_CLOEXEC);
@ -291,25 +240,286 @@ oops:
return QSE_INVALID_SCKHND; return QSE_INVALID_SCKHND;
} }
static void schedule_request (ursd_t* ursd, urs_pkt_t* pkt, const qse_skad_t* skad, qse_sck_len_t skadlen) static int insert_to_mux (qse_mux_t* mux, qse_mux_hnd_t handle, int type, int index)
{ {
if (ursd->free_xpio) qse_mux_evt_t evt;
qse_memset (&evt, 0, QSE_SIZEOF(evt));
evt.hnd = handle;
evt.mask = (type == TYPE_PIO_IN? QSE_MUX_OUT: QSE_MUX_IN);
evt.data = MAKE_MUX_DATA(type, index);
return qse_mux_insert (mux, &evt);
}
static int delete_from_mux (qse_mux_t* mux, qse_mux_hnd_t handle, int type, int index)
{ {
xpio_t* xpio = dechain_from_free_list (ursd, ursd->free_xpio); qse_mux_evt_t evt;
xpio->req.from = *skad; qse_memset (&evt, 0, QSE_SIZEOF(evt));
xpio->req.fromlen = skadlen; evt.hnd = handle;
qse_memcpy (xpio->req.buf, pkt, QSE_SIZEOF(urs_hdr_t)); /* copy header */ evt.mask = (type == TYPE_PIO_IN? QSE_MUX_OUT: QSE_MUX_IN);
evt.data = MAKE_MUX_DATA(type, index);
return qse_mux_delete (mux, &evt);
}
printf ("XPIO WRITNG TO PIPE %p %d\n", xpio, qse_skadfamily(skad)); static void chain_rewriter_to_free_list (ursd_t* ursd, rewriter_t* rewriter)
qse_pio_write (xpio->pio, QSE_PIO_IN, pkt->url, pkt->hdr.pktlen - QSE_SIZEOF(urs_hdr_t)); /* TODO: error handling */ {
chain_to_busy_list (ursd, xpio); rewriter->free = 1;
rewriter->prev = QSE_NULL;
rewriter->next = ursd->free_rewriter;
if (ursd->free_rewriter) ursd->free_rewriter->prev = rewriter;
ursd->free_rewriter = rewriter;
ursd->nfree++;
}
static rewriter_t* dechain_rewriter_from_free_list (ursd_t* ursd, rewriter_t* rewriter)
{
if (rewriter->next) rewriter->next->prev = rewriter->prev;
if (rewriter == ursd->free_rewriter) ursd->free_rewriter = rewriter->next;
else rewriter->prev->next = rewriter->next;
rewriter->free = 0;
ursd->nfree--;
return rewriter;
}
static void chain_rewriter_to_busy_list (ursd_t* ursd, rewriter_t* rewriter)
{
rewriter->busy = 1;
rewriter->prev = QSE_NULL;
rewriter->next = ursd->busy_rewriter;
if (ursd->busy_rewriter) ursd->busy_rewriter->prev = rewriter;
ursd->busy_rewriter = rewriter;
}
static rewriter_t* dechain_rewriter_from_busy_list (ursd_t* ursd, rewriter_t* rewriter)
{
if (rewriter->next) rewriter->next->prev = rewriter->prev;
if (rewriter == ursd->busy_rewriter) ursd->busy_rewriter = rewriter->next;
else rewriter->prev->next = rewriter->next;
rewriter->busy = 0;
return rewriter;
}
static void start_rewriter (ursd_t* ursd, rewriter_t* rewriter)
{
QSE_ASSERT (rewriter->pio == QSE_NULL);
rewriter->pio = qse_pio_open (
ursd->mmgr, 0, ursd->cmdline, QSE_NULL,
QSE_PIO_WRITEIN | QSE_PIO_READOUT | QSE_PIO_ERRTONUL |
QSE_PIO_INNOBLOCK | QSE_PIO_OUTNOBLOCK
);
if (rewriter->pio)
{
if (insert_to_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_OUT), TYPE_PIO_OUT, rewriter->index) <= -1)
{
/* error logging */
qse_pio_kill (rewriter->pio);
qse_pio_close (rewriter->pio);
rewriter->pio = QSE_NULL;
}
}
}
static void stop_rewriter (ursd_t* ursd, rewriter_t* rewriter)
{
if (rewriter->pio)
{
if (rewriter->pio_in_in_mux)
{
delete_from_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_IN), TYPE_PIO_IN, rewriter->index);
rewriter->pio_in_in_mux = 0;
}
delete_from_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_OUT), TYPE_PIO_OUT, rewriter->index);
qse_pio_kill (rewriter->pio);
qse_pio_close (rewriter->pio);
rewriter->pio = QSE_NULL;
}
}
static void restart_rewriter (ursd_t* ursd, rewriter_t* rewriter)
{
stop_rewriter (ursd, rewriter);
start_rewriter (ursd, rewriter);
}
static void reset_rewriter_data (rewriter_t* rewriter)
{
int index = rewriter->index;
qse_pio_t* pio = rewriter->pio;
qse_memset (rewriter, 0, QSE_SIZEOF(*rewriter));
rewriter->index = index;
rewriter->pio = pio;
}
static rewriter_t* get_free_rewriter (ursd_t* ursd)
{
rewriter_t* rewriter;
for (rewriter = ursd->free_rewriter; rewriter; rewriter = rewriter->next)
{
QSE_ASSERT (!rewriter->busy);
QSE_ASSERT (!rewriter->faulty);
QSE_ASSERT (!rewriter->pio_in_in_mux);
if (!rewriter->pio) start_rewriter (ursd, rewriter);
if (rewriter->pio)
{
dechain_rewriter_from_free_list (ursd, rewriter);
reset_rewriter_data (rewriter);
return rewriter;
}
}
return QSE_NULL;
}
static void release_rewriter (ursd_t* ursd, rewriter_t* rewriter, int send_empty_response)
{
if (send_empty_response)
{
urs_pkt_t* pkt = (urs_pkt_t*)rewriter->req.buf;
pkt->hdr.pktlen = qse_ntoh16(QSE_SIZEOF(urs_hdr_t));
sendto (ursd->sck, pkt, QSE_SIZEOF(urs_hdr_t), 0, (struct sockaddr*)&rewriter->req.from, rewriter->req.fromlen);
/* TOOD: error logging. if this fails, the client side should resend a request or just time out. */
}
if (rewriter->pio_in_in_mux)
{
delete_from_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_IN), TYPE_PIO_IN, rewriter->index);
rewriter->pio_in_in_mux = 0;
}
if (rewriter->busy) dechain_rewriter_from_busy_list (ursd, rewriter);
if (rewriter->faulty)
{
restart_rewriter (ursd, rewriter);
/* NOTE: start may fail in restart_rewriter(),
* meaning rewrite->pio can still be null. */
rewriter->faulty = 0;
}
chain_rewriter_to_free_list (ursd, rewriter);
}
static void seize_rewriter (ursd_t* ursd, rewriter_t* rewriter)
{
/* call this function once the request from the socket has been
* fully written to the rewriter. */
if (rewriter->pio_in_in_mux)
{
delete_from_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_IN), TYPE_PIO_IN, rewriter->index);
rewriter->pio_in_in_mux = 0;
}
QSE_ASSERT (!rewriter->faulty);
QSE_ASSERT (!rewriter->busy);
chain_rewriter_to_busy_list (ursd, rewriter);
}
static int feed_rewriter (ursd_t* ursd, rewriter_t* rewriter)
{
qse_ssize_t x;
urs_pkt_t* pkt = (urs_pkt_t*)rewriter->req.buf;
while (rewriter->req.urlpos < rewriter->req.urllen)
{
x = qse_pio_write (rewriter->pio, QSE_PIO_IN, &pkt->url[rewriter->req.urlpos], rewriter->req.urllen - rewriter->req.urlpos);
if (x <= -1)
{
if (qse_pio_geterrnum(rewriter->pio) == QSE_PIO_EAGAIN)
{
if (rewriter->pio_in_in_mux ||
insert_to_mux (ursd->mux, qse_pio_gethandle(rewriter->pio, QSE_PIO_IN), TYPE_PIO_IN, rewriter->index) >= 0)
{
/* this is partial success. the request has not
been passed to the rewriter in its entirety yet. */
rewriter->pio_in_in_mux = 1;
return 0;
}
}
/* reclaim the rewriter since it seems faulty */
rewriter->faulty = 1;
release_rewriter (ursd, rewriter, 1);
return -1;
}
rewriter->req.urlpos += x;
}
/* full feeding is completed - the entire request has
* been passed to the rewriter */
seize_rewriter (ursd, rewriter);
return 1; /* the full url has been passed to the rewriter */
}
static void receive_request_from_socket (ursd_t* ursd, const qse_mux_evt_t* evt)
{
qse_ssize_t x;
urs_pkt_t* pkt;
rewriter_t* rewriter;
rewriter = get_free_rewriter (ursd);
if (rewriter)
{
rewriter->req.fromlen = QSE_SIZEOF(rewriter->req.from);
x = recvfrom (evt->hnd, rewriter->req.buf, QSE_SIZEOF(rewriter->req.buf) - 1, 0, (struct sockaddr*)&rewriter->req.from, &rewriter->req.fromlen);
/*TODO: improve error handling */
if (x < QSE_SIZEOF(urs_hdr_t))
{
/* TODO: message logging */
return;
}
pkt = (urs_pkt_t*)rewriter->req.buf;
pkt->hdr.pktlen = qse_ntoh16(pkt->hdr.pktlen); /* change the byte order */
if (pkt->hdr.pktlen != x)
{
/* TOOD: message logging */
return;
}
rewriter->req.buf[x] = QSE_MT('\n'); /* put a new line at the end */
rewriter->req.urlpos = 0;
rewriter->req.urllen = pkt->hdr.pktlen - QSE_SIZEOF(urs_hdr_t) + 1; /* +1 for '\n' */
printf ("%d [[[%.*s]]]\n", (int)x, (int)rewriter->req.urllen, pkt->url);
feed_rewriter (ursd, rewriter);
} }
else else
{ {
/* queue up in the internal queue... */
/* TODO */ /* TODO */
qse_sck_len_t fromlen;
qse_skad_t from;
qse_uint8_t buf[65535];
urs_pkt_t* pkt;
fromlen = QSE_SIZEOF(from);
x = recvfrom (evt->hnd, buf, QSE_SIZEOF(buf) - 1, 0, (struct sockaddr*)&from, &fromlen);
/* TODO: queue up in the internal queue instead of returnign empty response */
pkt = (urs_pkt_t*)buf;
pkt->hdr.pktlen = qse_hton16(QSE_SIZEOF(urs_hdr_t));
sendto (evt->hnd, pkt, QSE_SIZEOF(urs_hdr_t), 0, (struct sockaddr*)&from, fromlen);
} }
} }
@ -317,72 +527,98 @@ static void dispatch_mux_event (qse_mux_t* mux, const qse_mux_evt_t* evt)
{ {
mux_xtn_t* mux_xtn; mux_xtn_t* mux_xtn;
int type, index; int type, index;
qse_skad_t skad;
qse_sck_len_t skad_len;
unsigned char buf[65535];
mux_xtn = (mux_xtn_t*)qse_mux_getxtn(mux); mux_xtn = (mux_xtn_t*)qse_mux_getxtn(mux);
type = GET_TYPE_FROM_MUX_DATA((qse_uintptr_t)evt->data); type = GET_TYPE_FROM_MUX_DATA((qse_uintptr_t)evt->data);
index = GET_INDEX_FROM_MUX_DATA((qse_uintptr_t)evt->data); index = GET_INDEX_FROM_MUX_DATA((qse_uintptr_t)evt->data);
if (type == TYPE_SOCKET) switch (type)
{ {
ssize_t x; case TYPE_SOCKET:
skad_len = QSE_SIZEOF(skad);
x = recvfrom (evt->hnd, buf, QSE_SIZEOF(buf), 0, (struct sockaddr*)&skad, &skad_len);
printf ("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx\n");
/* TODO: error handling */
if (x >= QSE_SIZEOF(urs_hdr_t))
{ {
urs_pkt_t* pkt = (urs_pkt_t*)buf; receive_request_from_socket (mux_xtn->ursd, evt);
break;
pkt->hdr.pktlen = qse_ntoh16(pkt->hdr.pktlen); /* change the byte order */
if (pkt->hdr.pktlen == x)
{
printf ("%d [[[%.*s]]]\n", (int)x, (int)(pkt->hdr.pktlen - QSE_SIZEOF(urs_hdr_t)), pkt->url);
schedule_request (mux_xtn->ursd, pkt, &skad, skad_len);
} }
}
} case TYPE_PIO_OUT:
else
{ {
/* the rewriter has produced some data */
qse_ssize_t x; qse_ssize_t x;
urs_pkt_t* pkt; urs_pkt_t* pkt;
xpio_t* xpio = &mux_xtn->ursd->xpios[index]; qse_size_t maxoutlen;
if (xpio->busy) rewriter_t* rewriter = &mux_xtn->ursd->rewriters[index];
if (rewriter->busy)
{ {
pkt = (urs_pkt_t*)xpio->req.buf; pkt = (urs_pkt_t*)rewriter->req.buf;
maxoutlen = QSE_SIZEOF(rewriter->req.buf) - QSE_SIZEOF(urs_hdr_t);
x = qse_pio_read (xpio->pio, QSE_PIO_OUT, pkt->url, QSE_SIZEOF(xpio->req.buf) - QSE_SIZEOF(urs_hdr_t)); x = qse_pio_read (rewriter->pio, QSE_PIO_OUT, &pkt->url[rewriter->req.outlen], maxoutlen - rewriter->req.outlen);
printf ("READ %d bytes from pipes [%.*s]\n", (int)x, (int)x, pkt->url); if (x <= 0)
x += QSE_SIZEOF(urs_hdr_t); /* add up the header size */
if (x > QSE_TYPE_MAX(qse_uint16_t))
{ {
/* ERROR HANDLING - it's returning too long data */ /* read failure or end of input */
rewriter->faulty = 1;
release_rewriter (mux_xtn->ursd, rewriter, 1);
} }
pkt->hdr.pktlen = qse_hton16(x); /* change the byte order */ rewriter->req.outlen += x;
sendto (mux_xtn->ursd->sck, pkt, x, 0, (struct sockaddr*)&xpio->req.from, xpio->req.fromlen); if (rewriter->req.outlen > maxoutlen)
{
/* the rewriter returns too long a result */
rewriter->faulty = 1;
release_rewriter (mux_xtn->ursd, rewriter, 1);
}
/* TODO: error handling */ printf ("READ %d, %d bytes from pipes [%.*s]\n", (int)x, (int)rewriter->req.outlen, (int)rewriter->req.outlen, pkt->url);
/* TODO: if there is a pending request, use this xpio to send request... */ if (pkt->url[rewriter->req.outlen - 1] == QSE_MT('\n'))
{
/* the last byte is a new line. i don't really care about
* new lines in the middle of data. the rewriter must
* keep to the protocol. */
dechain_from_busy_list (mux_xtn->ursd, xpio); /* add up the header size. -1 to exclude '\n' */
chain_to_free_list (mux_xtn->ursd, xpio); rewriter->req.outlen += QSE_SIZEOF(urs_hdr_t) - 1;
pkt->hdr.pktlen = qse_hton16(rewriter->req.outlen); /* change the byte order */
sendto (mux_xtn->ursd->sck, pkt, rewriter->req.outlen, 0, (struct sockaddr*)&rewriter->req.from, rewriter->req.fromlen);
/* TODO: error logging */
/* sendto() to the socket can be blocking. if the socket side is too busy, there's no reason for rewriter to be as busy.
* it can wait a while. think about it. */
release_rewriter (mux_xtn->ursd, rewriter, 0);
/* TODO: if there is a pending request, schedule another rewriter here. */
}
/* TODO: is the complete output is not received within time, some actions must be taken. timer based... rewrite timeout */
} }
else else
{ {
/* something is wrong. if the child process writes something /* something is wrong. if the rewriter process writes something
* while it's not given any input. restart this process */ * while it's not given the full input. reclaim it */
rewriter->faulty = 1;
release_rewriter (mux_xtn->ursd, rewriter, 1);
}
/* TODO: */ break;
}
case TYPE_PIO_IN:
{
/* the pipe to the rewriter is writable.
* pass the leftover to the rewriter */
rewriter_t* rewriter = &mux_xtn->ursd->rewriters[index];
QSE_ASSERT (rewriter->pio_in_in_mux);
QSE_ASSERT (!rewriter->free && !rewriter->busy);
feed_rewriter (mux_xtn->ursd, rewriter);
break;
} }
} }
} }
@ -393,9 +629,17 @@ static int init_ursd (ursd_t* ursd, int npios, const qse_char_t* cmdline, const
qse_nwad_t bindnwad; qse_nwad_t bindnwad;
mux_xtn_t* mux_xtn; mux_xtn_t* mux_xtn;
memset (ursd, 0, sizeof(*ursd)); qse_memset (ursd, 0, sizeof(*ursd));
ursd->mmgr = QSE_MMGR_GETDFL();
ursd->mux = qse_mux_open (QSE_MMGR_GETDFL(), QSE_SIZEOF(mux_xtn_t), dispatch_mux_event, 100, QSE_NULL); ursd->cmdline = qse_strdup (cmdline, ursd->mmgr);
if (ursd->cmdline == QSE_NULL)
{
fprintf (stderr, "cannot copy cmdline\n");
goto oops;
}
ursd->mux = qse_mux_open (ursd->mmgr, QSE_SIZEOF(mux_xtn_t), dispatch_mux_event, 100, QSE_NULL);
if (ursd->mux == QSE_NULL) if (ursd->mux == QSE_NULL)
{ {
fprintf (stderr, "cannot create a multiplexer\n"); fprintf (stderr, "cannot create a multiplexer\n");
@ -409,26 +653,21 @@ static int init_ursd (ursd_t* ursd, int npios, const qse_char_t* cmdline, const
} }
ursd->sck = open_server_socket (/*IPPROTO_SCTP*/IPPROTO_UDP, &bindnwad); ursd->sck = open_server_socket (/*IPPROTO_SCTP*/IPPROTO_UDP, &bindnwad);
if (ursd->sck == QSE_INVALID_SCKHND) goto oops;
ursd->xpios = calloc (npios, QSE_SIZEOF(xpio_t)); ursd->rewriters = QSE_MMGR_ALLOC (ursd->mmgr, npios * QSE_SIZEOF(rewriter_t));
if (ursd->xpios == QSE_NULL) if (ursd->rewriters == QSE_NULL)
{ {
fprintf (stderr, "cannot callocate pipes\n"); fprintf (stderr, "cannot callocate pipes\n");
goto oops; goto oops;
} }
qse_memset (ursd->rewriters, 0, npios * QSE_SIZEOF(rewriter_t));
for (i = 0; i < npios; i++) for (i = 0; i < npios; i++)
{ {
qse_pio_t* pio; ursd->rewriters[i].index = i;
start_rewriter (ursd, &ursd->rewriters[i]);
pio = qse_pio_open ( release_rewriter (ursd, &ursd->rewriters[i], 0);
QSE_MMGR_GETDFL(), 0, cmdline, QSE_NULL,
QSE_PIO_WRITEIN | QSE_PIO_READOUT | QSE_PIO_ERRTONUL |
QSE_PIO_INNOBLOCK | QSE_PIO_OUTNOBLOCK
);
if (pio == QSE_NULL) goto oops;
ursd->xpios[i].pio = pio;
} }
if (insert_to_mux (ursd->mux, ursd->sck, TYPE_SOCKET, 0) <= -1) if (insert_to_mux (ursd->mux, ursd->sck, TYPE_SOCKET, 0) <= -1)
@ -436,16 +675,6 @@ static int init_ursd (ursd_t* ursd, int npios, const qse_char_t* cmdline, const
fprintf (stderr, "cannot add socket to multiplexer\n"); fprintf (stderr, "cannot add socket to multiplexer\n");
goto oops; goto oops;
} }
for (i = 0; i < npios; i++)
{
if (insert_to_mux (ursd->mux, qse_pio_gethandle(ursd->xpios[i].pio, QSE_PIO_OUT), TYPE_PIO, i) <= -1)
{
fprintf (stderr, "cannot add pipe to multiplexer\n");
goto oops;
}
}
for (i = 0; i < npios; i++) chain_to_free_list (ursd, &ursd->xpios[i]);
ursd->total = npios; ursd->total = npios;
@ -454,13 +683,14 @@ static int init_ursd (ursd_t* ursd, int npios, const qse_char_t* cmdline, const
return 0; return 0;
oops: oops:
if (ursd->mux) qse_mux_close (ursd->mux); if (ursd->rewriters)
for (i = 0; i < npios; i++)
{ {
if (ursd->xpios[i].pio) qse_pio_close (ursd->xpios[i].pio); for (i = 0; i < npios; i++) stop_rewriter (ursd, &ursd->rewriters[i]);
QSE_MMGR_FREE (ursd->mmgr, ursd->rewriters);
} }
if (ursd->xpios) free (ursd->xpios); if (qse_isvalidsckhnd(ursd->sck)) qse_closesckhnd (ursd->sck);
if (ursd->mux) qse_mux_close (ursd->mux);
if (ursd->cmdline) QSE_MMGR_FREE(ursd->mmgr, ursd->cmdline);
return -1; return -1;
} }
@ -469,16 +699,19 @@ static void fini_ursd (ursd_t* ursd)
{ {
qse_size_t i; qse_size_t i;
/* destroy the multiplex first. i don't want to delete handles explicitly */ for (i = 0; i < ursd->total; i++) stop_rewriter (ursd, &ursd->rewriters[i]);
qse_mux_close (ursd->mux); QSE_MMGR_FREE (ursd->mmgr, ursd->rewriters);
for (i = 0; i < ursd->total; i++)
{
if (ursd->xpios[i].pio) qse_pio_close (ursd->xpios[i].pio);
}
if (ursd->xpios) free (ursd->xpios);
delete_from_mux (ursd->mux, ursd->sck, TYPE_SOCKET, 0);
qse_closesckhnd (ursd->sck); qse_closesckhnd (ursd->sck);
qse_mux_close (ursd->mux);
QSE_MMGR_FREE (ursd->mmgr, ursd->cmdline);
}
static int g_stop_requested = 0;
static void handle_signal (int sig)
{
if (sig == SIGINT) g_stop_requested = 1;
} }
static int httpd_main (int argc, qse_char_t* argv[]) static int httpd_main (int argc, qse_char_t* argv[])
@ -486,10 +719,13 @@ static int httpd_main (int argc, qse_char_t* argv[])
ursd_t ursd; ursd_t ursd;
int ursd_inited = 0; int ursd_inited = 0;
if (init_ursd (&ursd, 10, QSE_T("/bin/cat"), QSE_T("[::]:97]")) <= -1) goto oops; signal (SIGINT, handle_signal);
signal (SIGPIPE, SIG_IGN);
if (init_ursd (&ursd, 10, QSE_T("/tmp/urs.awk"), QSE_T("[::]:97]")) <= -1) goto oops;
ursd_inited = 1; ursd_inited = 1;
while (1) while (!g_stop_requested)
{ {
qse_ntime_t tmout; qse_ntime_t tmout;
qse_cleartime (&tmout); qse_cleartime (&tmout);
@ -545,7 +781,6 @@ int qse_main (int argc, qse_achar_t* argv[])
qse_setdflcmgrbyid (QSE_CMGR_SLMB); qse_setdflcmgrbyid (QSE_CMGR_SLMB);
#endif #endif
qse_openstdsios (); qse_openstdsios ();
ret = qse_runmain (argc, argv, httpd_main); ret = qse_runmain (argc, argv, httpd_main);
qse_closestdsios (); qse_closestdsios ();

1
qse/lib/http/httpd-proxy.c
View File

@ -1946,6 +1946,7 @@ static void on_url_rewritten (qse_httpd_t* httpd, const qse_mchar_t* url, const
proxy->flags &= ~PROXY_REWRITE_URL; proxy->flags &= ~PROXY_REWRITE_URL;
printf ("XXXXXXXXXXXXXXXXXXXXXXXXXX URL REWRITTEN TO [%s].....\n", new_url);
if (new_url[0] == QSE_MT('\0')) if (new_url[0] == QSE_MT('\0'))
{ {
/* no change. carry on */ /* no change. carry on */

4
qse/lib/http/httpd-std-urs.h
View File

@ -221,10 +221,11 @@ static int urs_recv (qse_httpd_t* httpd, qse_httpd_urs_t* urs, qse_ubi_t handle)
urs_pkt_t* pkt; urs_pkt_t* pkt;
urs_req_t* req; urs_req_t* req;
printf ("URS_RECV....\n"); printf ("URS_RECV............................................\n");
httpd_xtn = qse_httpd_getxtn (httpd); httpd_xtn = qse_httpd_getxtn (httpd);
/* TODO: use recvmsg with MSG_ERRQUEUE... set socket option IP_RECVERR... */
fromlen = QSE_SIZEOF(fromaddr); fromlen = QSE_SIZEOF(fromaddr);
len = recvfrom (handle.i, dc->rcvbuf, QSE_SIZEOF(dc->rcvbuf) - 1, 0, (struct sockaddr*)&fromaddr, &fromlen); len = recvfrom (handle.i, dc->rcvbuf, QSE_SIZEOF(dc->rcvbuf) - 1, 0, (struct sockaddr*)&fromaddr, &fromlen);
@ -348,6 +349,7 @@ static int urs_send (qse_httpd_t* httpd, qse_httpd_urs_t* urs, const qse_mchar_t
qse_tmr_event_t tmout_event; qse_tmr_event_t tmout_event;
printf ("... URS_SEND.....................\n");
httpd_xtn = qse_httpd_getxtn (httpd); httpd_xtn = qse_httpd_getxtn (httpd);
if (dc->req_count >= QSE_COUNTOF(dc->reqs)) if (dc->req_count >= QSE_COUNTOF(dc->reqs))