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added a little timeout handling code to nwio

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This commit is contained in:
hyung-hwan 2012-07-28 03:51:07 +00:00
parent 9186415fa7
commit 0eb177db96
4 changed files with 214 additions and 51 deletions
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2
qse/include/qse/awk/std.h
View File

@ -182,7 +182,7 @@ void* qse_awk_rtx_getxtnstd (
* The qse_awk_rtx_getcmgrstd() function gets the current character
* manager associated with a particular I/O target indicated by the name
* @a ioname if #QSE_CHAR_IS_WCHAR is defined. It always returns #QSE_NULL
* if #QSE_CHAR_IS_MCHAR.
* if #QSE_CHAR_IS_MCHAR is defined.
*/
qse_cmgr_t* qse_awk_rtx_getcmgrstd (
qse_awk_rtx_t* rtx,

37
qse/include/qse/cmn/nwio.h
View File

@ -59,6 +59,7 @@ enum qse_nwio_errnum_t
QSE_NWIO_ENOENT, /**< no such file */
QSE_NWIO_EEXIST, /**< already exist */
QSE_NWIO_EINTR, /**< interrupted */
QSE_NWIO_ETMOUT, /**< timed out */
QSE_NWIO_EPIPE, /**< broken pipe */
QSE_NWIO_ECONN, /**< connection refused */
QSE_NWIO_EILSEQ, /**< illegal sequence */
@ -71,6 +72,13 @@ enum qse_nwio_errnum_t
};
typedef enum qse_nwio_errnum_t qse_nwio_errnum_t;
struct qse_nwio_tmout_t
{
int r, w, c, a;
};
typedef struct qse_nwio_tmout_t qse_nwio_tmout_t;
#if defined(_WIN32)
typedef qse_intptr_t qse_nwio_hnd_t;
#elif defined(__OS2__)
@ -89,11 +97,12 @@ typedef struct qse_nwio_t qse_nwio_t;
struct qse_nwio_t
{
QSE_DEFINE_COMMON_FIELDS (nwio)
int flags;
qse_nwio_errnum_t errnum;
qse_nwio_hnd_t handle;
qse_tio_t* tio;
int status;
int flags;
qse_nwio_errnum_t errnum;
qse_nwio_tmout_t tmout;
qse_nwio_hnd_t handle;
qse_tio_t* tio;
int status;
};
#define QSE_NWIO_HANDLE(nwio) ((nwio)->handle)
@ -113,10 +122,11 @@ QSE_DEFINE_COMMON_FUNCTIONS (nwio)
* as a pointer to qse_nwio_hnd_t.
*/
qse_nwio_t* qse_nwio_open (
qse_mmgr_t* mmgr,
qse_size_t ext,
const qse_nwad_t* nwad,
int flags
qse_mmgr_t* mmgr,
qse_size_t ext,
const qse_nwad_t* nwad,
int flags,
const qse_nwio_tmout_t* tmout
);
/**
@ -130,10 +140,11 @@ void qse_nwio_close (
* The qse_nwio_close() function opens a file into @a nwio.
*/
int qse_nwio_init (
qse_nwio_t* nwio,
qse_mmgr_t* mmgr,
const qse_nwad_t* nwad,
int flags
qse_nwio_t* nwio,
qse_mmgr_t* mmgr,
const qse_nwad_t* nwad,
int flags,
const qse_nwio_tmout_t* tmout
);
/**

92
qse/lib/awk/std.c
View File

@ -126,9 +126,11 @@ typedef struct ioattr_t
{
qse_cmgr_t* cmgr;
qse_char_t cmgr_name[64]; /* i assume that the cmgr name never exceeds this length */
qse_long_t timeout[3];
qse_long_t tmout[4];
} ioattr_t;
static ioattr_t* get_ioattr (qse_htb_t* tab, const qse_char_t* ptr, qse_size_t len);
static qse_flt_t custom_awk_pow (qse_awk_t* awk, qse_flt_t x, qse_flt_t y)
{
#if defined(HAVE_POWL) && (QSE_SIZEOF_LONG_DOUBLE > QSE_SIZEOF_DOUBLE)
@ -804,14 +806,16 @@ int qse_awk_parsestd (
/*** RTX_OPENSTD ***/
static qse_ssize_t nwio_handler_open (
qse_awk_rtx_t* rtx, qse_awk_rio_arg_t* riod, int flags, qse_nwad_t* nwad)
qse_awk_rtx_t* rtx, qse_awk_rio_arg_t* riod, int flags,
qse_nwad_t* nwad, qse_nwio_tmout_t* tmout)
{
qse_nwio_t* handle;
handle = qse_nwio_open (
qse_awk_rtx_getmmgr(rtx), 0, nwad,
flags | QSE_NWIO_TEXT | QSE_NWIO_IGNOREMBWCERR |
QSE_NWIO_REUSEADDR | QSE_NWIO_READNORETRY | QSE_NWIO_WRITENORETRY
QSE_NWIO_REUSEADDR | QSE_NWIO_READNORETRY | QSE_NWIO_WRITENORETRY,
tmout
);
if (handle == QSE_NULL) return -1;
@ -1031,9 +1035,30 @@ static qse_ssize_t awk_rio_pipe (
if (riod->mode != QSE_AWK_RIO_PIPE_RW ||
parse_rwpipe_uri (riod->name, &flags, &nwad) <= -1)
{
return pio_handler_open (rtx, riod);
}
else
return nwio_handler_open (rtx, riod, flags, &nwad);
{
qse_nwio_tmout_t tmout_buf;
qse_nwio_tmout_t* tmout = QSE_NULL;
ioattr_t* ioattr;
rxtn_t* rxtn;
rxtn = (rxtn_t*) QSE_XTN (rtx);
ioattr = get_ioattr (&rxtn->cmgrtab, riod->name, qse_strlen(riod->name));
if (ioattr)
{
tmout = &tmout_buf;
tmout->r = ioattr->tmout[0];
tmout->w = ioattr->tmout[1];
tmout->c = ioattr->tmout[2];
tmout->a = ioattr->tmout[3];
}
return nwio_handler_open (rtx, riod, flags, &nwad, tmout);
}
}
else if (riod->handle2)
return nwio_handler_rest (rtx, cmd, riod, data, size);
@ -1715,32 +1740,12 @@ static int fnc_time (qse_awk_rtx_t* rtx, const qse_cstr_t* fnm)
return 0;
}
qse_cmgr_t* qse_awk_rtx_getcmgrstd (
qse_awk_rtx_t* rtx, const qse_char_t* ioname)
{
#if defined(QSE_CHAR_IS_WCHAR)
rxtn_t* rxtn;
qse_htb_pair_t* pair;
ioattr_t* ioattr;
rxtn = (rxtn_t*) QSE_XTN (rtx);
QSE_ASSERT (rxtn->cmgrtab_inited == 1);
pair = qse_htb_search (&rxtn->cmgrtab, ioname, qse_strlen(ioname));
if (pair)
{
ioattr = (ioattr_t*)QSE_HTB_VPTR(pair);
return ioattr->cmgr;
}
#endif
return QSE_NULL;
}
static int timeout_code (const qse_char_t* name)
{
if (qse_strcmp (name, QSE_T("rtimeout")) == 0) return 0;
if (qse_strcmp (name, QSE_T("wtimeout")) == 0) return 1;
if (qse_strcmp (name, QSE_T("ctimeout")) == 0) return 2;
if (qse_strcmp (name, QSE_T("atimeout")) == 0) return 3;
return -1;
}
@ -1748,13 +1753,24 @@ static QSE_INLINE void init_ioattr (ioattr_t* ioattr)
{
int i;
QSE_MEMSET (ioattr, 0, QSE_SIZEOF(*ioattr));
for (i = 0; i < QSE_COUNTOF(ioattr->timeout); i++)
for (i = 0; i < QSE_COUNTOF(ioattr->tmout); i++)
{
/* a negative number for no timeout */
ioattr->timeout[i] = -999;
ioattr->tmout[i] = -999;
}
}
static ioattr_t* get_ioattr (
qse_htb_t* tab, const qse_char_t* ptr, qse_size_t len)
{
qse_htb_pair_t* pair;
pair = qse_htb_search (tab, ptr, len);
if (pair) return QSE_HTB_VPTR(pair);
return QSE_NULL;
}
static qse_htb_pair_t* find_or_make_ioattr (
qse_awk_rtx_t* rtx, qse_htb_t* tab, const qse_char_t* ptr, qse_size_t len)
{
@ -1767,7 +1783,7 @@ static qse_htb_pair_t* find_or_make_ioattr (
init_ioattr (&ioattr);
pair = qse_htb_insert (tab, ptr, len, &ioattr, QSE_SIZEOF(ioattr));
pair = qse_htb_insert (tab, (void*)ptr, len, (void*)&ioattr, QSE_SIZEOF(ioattr));
if (pair == QSE_NULL)
{
qse_awk_rtx_seterrnum (rtx, QSE_AWK_ENOMEM, QSE_NULL);
@ -1841,7 +1857,7 @@ static int fnc_setioattr (qse_awk_rtx_t* rtx, const qse_cstr_t* fnm)
}
ioattr = QSE_HTB_VPTR(pair);
ioattr->timeout[tmout] = l;
ioattr->tmout[tmout] = l;
}
#if defined(QSE_CHAR_IS_WCHAR)
else if (qse_strcmp (ptr[1], QSE_T("codepage")) == 0)
@ -1955,7 +1971,7 @@ static int fnc_getioattr (qse_awk_rtx_t* rtx, const qse_cstr_t* fnm)
if ((tmout = timeout_code (ptr[1])) >= 0)
{
rv = qse_awk_rtx_makeintval (rtx, ioattr->timeout[tmout]);
rv = qse_awk_rtx_makeintval (rtx, ioattr->tmout[tmout]);
if (rv == QSE_NULL)
{
ret = -1;
@ -1999,6 +2015,22 @@ done:
return ret;
}
qse_cmgr_t* qse_awk_rtx_getcmgrstd (
qse_awk_rtx_t* rtx, const qse_char_t* ioname)
{
#if defined(QSE_CHAR_IS_WCHAR)
rxtn_t* rxtn;
ioattr_t* ioattr;
rxtn = (rxtn_t*) QSE_XTN (rtx);
QSE_ASSERT (rxtn->cmgrtab_inited == 1);
ioattr = get_ioattr (&rxtn->cmgrtab, ioname, qse_strlen(ioname));
if (ioattr) return ioattr->cmgr;
#endif
return QSE_NULL;
}
#define ADDFNC(awk,name,min,max,fnc,valid) \
if (qse_awk_addfnc (\
(awk), (name), qse_strlen(name), \

134
qse/lib/cmn/nwio.c
View File

@ -19,6 +19,7 @@
*/
#include <qse/cmn/nwio.h>
#include <qse/cmn/time.h>
#include "mem.h"
#if defined(_WIN32)
@ -37,6 +38,7 @@
# include "syscall.h"
# include <sys/socket.h>
# include <netinet/in.h>
# include <sys/time.h>
#endif
QSE_IMPLEMENT_COMMON_FUNCTIONS (nwio)
@ -249,14 +251,15 @@ static qse_nwio_errnum_t tio_errnum_to_nwio_errnum (qse_tio_t* tio)
}
qse_nwio_t* qse_nwio_open (
qse_mmgr_t* mmgr, qse_size_t xtnsize, const qse_nwad_t* nwad, int flags)
qse_mmgr_t* mmgr, qse_size_t xtnsize, const qse_nwad_t* nwad,
int flags, const qse_nwio_tmout_t* tmout)
{
qse_nwio_t* nwio;
nwio = QSE_MMGR_ALLOC (mmgr, QSE_SIZEOF(qse_nwio_t) + xtnsize);
if (nwio == QSE_NULL) return QSE_NULL;
if (qse_nwio_init (nwio, mmgr, nwad, flags) <= -1)
if (qse_nwio_init (nwio, mmgr, nwad, flags, tmout) <= -1)
{
QSE_MMGR_FREE (mmgr, nwio);
return QSE_NULL;
@ -272,7 +275,8 @@ void qse_nwio_close (qse_nwio_t* nwio)
}
int qse_nwio_init (
qse_nwio_t* nwio, qse_mmgr_t* mmgr, const qse_nwad_t* nwad, int flags)
qse_nwio_t* nwio, qse_mmgr_t* mmgr, const qse_nwad_t* nwad,
int flags, const qse_nwio_tmout_t* tmout)
{
#if defined(AF_INET)
union sockaddr_t addr;
@ -289,7 +293,15 @@ int qse_nwio_init (
nwio->mmgr = mmgr;
nwio->flags = flags;
nwio->errnum = QSE_NWIO_ENOERR;
if (tmout) nwio->tmout = *tmout;
else
{
nwio->tmout.r = -1;
nwio->tmout.w = -1;
nwio->tmout.c = -1;
nwio->tmout.a = -1;
}
#if defined(AF_INET)
tmp = nwad_to_sockaddr (nwad, &family, &addr);
if (tmp <= -1)
@ -504,10 +516,82 @@ int qse_nwio_init (
}
else
{
if (connect (nwio->handle, (struct sockaddr*)&addr, addrlen) <= -1)
int orgfl, xret;
if (nwio->tmout.c >= 0 && (flags & QSE_NWIO_TCP))
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
orgfl = fcntl (nwio->handle, F_GETFL, 0);
if (orgfl <= -1 ||
fcntl (nwio->handle, F_SETFL, orgfl | O_NONBLOCK) <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
}
}
xret = connect (nwio->handle, (struct sockaddr*)&addr, addrlen);
if (nwio->tmout.c >= 0 && (flags & QSE_NWIO_TCP))
{
fd_set wfds;
struct timeval tv;
if ((xret <= -1 && errno != EINPROGRESS) ||
fcntl (nwio->handle, F_SETFL, orgfl) <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
}
FD_ZERO (&wfds);
FD_SET (nwio->handle, &wfds);
tv.tv_sec = nwio->tmout.c / QSE_MSECS_PER_SEC;
tv.tv_usec = (nwio->tmout.c % QSE_MSECS_PER_SEC) *
QSE_USECS_PER_MSEC;
xret = select (nwio->handle + 1,
QSE_NULL, &wfds, QSE_NULL, &tv);
if (xret <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
}
else if (xret == 0)
{
nwio->errnum = QSE_NWIO_ETMOUT;
goto oops;
}
else if (!FD_ISSET (nwio->handle, &wfds))
{
nwio->errnum = QSE_NWIO_ECONN;
goto oops;
}
else
{
#if defined(HAVE_SOCKLEN_T)
socklen_t xlen;
#else
int xlen;
#endif
if (getsockopt (nwio->handle, SOL_SOCKET, SO_ERROR, (char*)&xret, &xlen) <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
}
else if (xret != 0)
{
nwio->errnum = syserr_to_errnum (xret);
goto oops;
}
}
}
else
{
if (xret <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
goto oops;
}
}
}
#endif
@ -640,6 +724,33 @@ void qse_nwio_purge (qse_nwio_t* nwio)
if (nwio->tio) qse_tio_purge (nwio->tio);
}
static int wait_for_data (qse_nwio_t* nwio, int tmout, int what)
{
int xret;
fd_set fds[2];
struct timeval tv;
FD_ZERO (&fds[0]);
FD_ZERO (&fds[1]);
FD_SET (nwio->handle, &fds[what]);
tv.tv_sec = tmout / QSE_MSECS_PER_SEC;
tv.tv_usec = (tmout % QSE_MSECS_PER_SEC) *
QSE_USECS_PER_MSEC;
xret = select (nwio->handle + 1, &fds[0], &fds[1], QSE_NULL, &tv);
if (xret <= -1)
{
nwio->errnum = syserr_to_errnum (errno);
return -1;
}
else if (xret == 0)
{
nwio->errnum = QSE_NWIO_ETMOUT;
return -1;
}
return 0;
}
/* ---------------------------------------------------------- */
static qse_ssize_t nwio_read (qse_nwio_t* nwio, void* buf, qse_size_t size)
@ -749,6 +860,10 @@ reread:
#endif
addrlen = QSE_SIZEOF(addr);
/* it's similar to accept for tcp.
* since i'm expecting the first sender and call
* connect() to it below.
* TODO: do i have apply tmout.a instead of tmout.r??? */
n = recvfrom (
nwio->handle, buf, size, 0,
(struct sockaddr*)&addr, &addrlen);
@ -779,6 +894,11 @@ reread:
}
else
{
if (nwio->tmout.r >= 0)
{
if (wait_for_data (nwio, nwio->tmout.r, 0) <= -1) return -1;
}
n = recv (nwio->handle, buf, size, 0);
if (n <= -1)
{