cpython-lru_cache-weakref: Python/dynload

annotate Python/dynload_shlib.c @ 24866:f0dbd5b49d8a legacy-trunk

Streamline the fast track for CFunction calls a bit more: there was nothing special done if keyword arguments were present, so test for that earlier and fall through to the normal case if there are any. This ought to slow down CFunction calls with keyword args, but I don't care; it's a tiny (1%) improvement for pystone.

author	Guido van Rossum <guido@python.org>
date	Fri, 16 Aug 2002 16:14:00 +0000
parents	5cbcfde3ad55
children	ac487a7f7f2c

rev	line source
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	1
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Support for dynamic loading of extension modules */
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	3
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	4 #include "Python.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	5 #include "importdl.h"
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	6
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	7 #include <sys/types.h>
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	8 #include <sys/stat.h>
20546 73a1395a2351 Move dlfcn.h block out of NetBSD block, assuming that NetBSD before Martin v. Löwis <martin@v.loewis.de> parents: 20510 diff changeset	9
20510 bdc486c66df0 Patch to bug #472202: Correctly recognize NetBSD before 199712. Martin v. Löwis <martin@v.loewis.de> parents: 19728 diff changeset	10 #if defined(__NetBSD__)
bdc486c66df0 Patch to bug #472202: Correctly recognize NetBSD before 199712. Martin v. Löwis <martin@v.loewis.de> parents: 19728 diff changeset	11 #include <sys/param.h>
bdc486c66df0 Patch to bug #472202: Correctly recognize NetBSD before 199712. Martin v. Löwis <martin@v.loewis.de> parents: 19728 diff changeset	12 #if (NetBSD < 199712)
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	13 #include <nlist.h>
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	14 #include <link.h>
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	15 #define dlerror() "error in dynamic linking"
20546 73a1395a2351 Move dlfcn.h block out of NetBSD block, assuming that NetBSD before Martin v. Löwis <martin@v.loewis.de> parents: 20510 diff changeset	16 #endif
73a1395a2351 Move dlfcn.h block out of NetBSD block, assuming that NetBSD before Martin v. Löwis <martin@v.loewis.de> parents: 20510 diff changeset	17 #endif /* NetBSD */
73a1395a2351 Move dlfcn.h block out of NetBSD block, assuming that NetBSD before Martin v. Löwis <martin@v.loewis.de> parents: 20510 diff changeset	18
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	19 #ifdef HAVE_DLFCN_H
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	20 #include <dlfcn.h>
22054 5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	21 #else
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	22 #if defined(PYOS_OS2) && defined(PYCC_GCC)
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	23 #include "dlfcn.h"
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	24 #endif
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	25 #endif
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	26
20510 bdc486c66df0 Patch to bug #472202: Correctly recognize NetBSD before 199712. Martin v. Löwis <martin@v.loewis.de> parents: 19728 diff changeset	27 #if (defined(__OpenBSD__) \|\| defined(__NetBSD__)) && !defined(__ELF__)
15336 bbc991ab6d32 Patch 102114, Bug 11725. On OpenBSD (but apparently not on the other Guido van Rossum <guido@python.org> parents: 15036 diff changeset	28 #define LEAD_UNDERSCORE "_"
bbc991ab6d32 Patch 102114, Bug 11725. On OpenBSD (but apparently not on the other Guido van Rossum <guido@python.org> parents: 15036 diff changeset	29 #else
bbc991ab6d32 Patch 102114, Bug 11725. On OpenBSD (but apparently not on the other Guido van Rossum <guido@python.org> parents: 15036 diff changeset	30 #define LEAD_UNDERSCORE ""
bbc991ab6d32 Patch 102114, Bug 11725. On OpenBSD (but apparently not on the other Guido van Rossum <guido@python.org> parents: 15036 diff changeset	31 #endif
bbc991ab6d32 Patch 102114, Bug 11725. On OpenBSD (but apparently not on the other Guido van Rossum <guido@python.org> parents: 15036 diff changeset	32
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	33
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	34 const struct filedescr _PyImport_DynLoadFiletab[] = {
15036 6e9ff060a728 SF "bug" 115973: patches from Norman Vine so that shared libraries and Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	35 #ifdef __CYGWIN__
6e9ff060a728 SF "bug" 115973: patches from Norman Vine so that shared libraries and Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	36 {".dll", "rb", C_EXTENSION},
15806 3b9b8f2ddfe7 Oops, one more part of the cygwin patch (SF patch #102409 by jlt63: Guido van Rossum <guido@python.org> parents: 15336 diff changeset	37 {"module.dll", "rb", C_EXTENSION},
15036 6e9ff060a728 SF "bug" 115973: patches from Norman Vine so that shared libraries and Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	38 #else
22054 5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	39 #if defined(PYOS_OS2) && defined(PYCC_GCC)
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	40 {".pyd", "rb", C_EXTENSION},
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	41 {".dll", "rb", C_EXTENSION},
5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	42 #else
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	43 {".so", "rb", C_EXTENSION},
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	44 {"module.so", "rb", C_EXTENSION},
15036 6e9ff060a728 SF "bug" 115973: patches from Norman Vine so that shared libraries and Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	45 #endif
22054 5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	46 #endif
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	47 {0, 0}
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	48 };
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	49
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	50 static struct {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	51 dev_t dev;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	52 ino_t ino;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	53 void *handle;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	54 } handles[128];
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	55 static int nhandles = 0;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	56
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	57
11618 528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	58 dl_funcptr _PyImport_GetDynLoadFunc(const char fqname, const char shortname,
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	59 const char pathname, FILE fp)
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	60 {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	61 dl_funcptr p;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	62 void *handle;
11618 528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	63 char funcname[258];
528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	64 char pathbuf[260];
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	65 int dlopenflags=0;
11618 528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	66
528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	67 if (strchr(pathname, '/') == NULL) {
528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	68 /* Prefix bare filename with "./" */
21077 379fc66f4c96 Use PyOS_snprintf instead of sprintf. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20546 diff changeset	69 PyOS_snprintf(pathbuf, sizeof(pathbuf), "./%-.255s", pathname);
11618 528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	70 pathname = pathbuf;
528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	71 }
528559a0b2f2 Cleanup patches from Greg Stein: Guido van Rossum <guido@python.org> parents: 11599 diff changeset	72
21077 379fc66f4c96 Use PyOS_snprintf instead of sprintf. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20546 diff changeset	73 PyOS_snprintf(funcname, sizeof(funcname),
379fc66f4c96 Use PyOS_snprintf instead of sprintf. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20546 diff changeset	74 LEAD_UNDERSCORE "init%.200s", shortname);
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	75
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	76 if (fp != NULL) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	77 int i;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	78 struct stat statb;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	79 fstat(fileno(fp), &statb);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	80 for (i = 0; i < nhandles; i++) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	81 if (statb.st_dev == handles[i].dev &&
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	82 statb.st_ino == handles[i].ino) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	83 p = (dl_funcptr) dlsym(handles[i].handle,
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	84 funcname);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	85 return p;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	86 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	87 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	88 if (nhandles < 128) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	89 handles[nhandles].dev = statb.st_dev;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	90 handles[nhandles].ino = statb.st_ino;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	91 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	92 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	93
22054 5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	94 #if !(defined(PYOS_OS2) && defined(PYCC_GCC))
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	95 dlopenflags = PyThreadState_Get()->interp->dlopenflags;
22054 5cbcfde3ad55 OS/2 EMX port changes (Python part of patch #450267): Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 21077 diff changeset	96 #endif
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	97
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	98 if (Py_VerboseFlag)
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	99 printf("dlopen(\"%s\", %x);\n", pathname, dlopenflags);
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	100
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	101 handle = dlopen(pathname, dlopenflags);
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 15806 diff changeset	102
11599 78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	103 if (handle == NULL) {
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	104 PyErr_SetString(PyExc_ImportError, dlerror());
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	105 return NULL;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	106 }
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	107 if (fp != NULL && nhandles < 128)
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	108 handles[nhandles++].handle = handle;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	109 p = (dl_funcptr) dlsym(handle, funcname);
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	110 return p;
78fe87ce0ded The old platform-specific contents of importdl.c, broken down into one Guido van Rossum <guido@python.org> parents: diff changeset	111 }

Mercurial > cpython-lru_cache-weakref

annotate Python/dynload_shlib.c @ 24866:f0dbd5b49d8a legacy-trunk