xorg/xserver - X server mirrored from https://gitlab.freedesktop

ping_common.h - Android社区 - https://www.androidos.net.cn/

The problem is that two or more threads can encounter errors, all causing the same errno to be set. ENOENT No such file or directory (POSIX.1-2001). Typically, this error results when a specified pathname does not exist, or one of the components in the directory prefix of a pathname does not exist, or the specified pathname is a dangling symbolic link. ENOEXEC Exec format error (POSIX.1-2001). Name. __errno_location -- address of errno variable. Synopsis.

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201 mxml_node_t *child  extern bool useTech5Packets; void DoomLib::PollNetwork() { #if 0 if ( !useTech5Packets ) { if ( !globalNetworking ) { return; } int c; struct sockaddr fromaddress;  #include . extern void __seterrno(void);, extern void __seterrno(void);. extern char *__amigapath(const char *path);, extern char *__amigapath(const  #include #include #include int count); extern int file_read(struct m_inode * inode, struct file * filp, char  21 #include "dce-errno.h". 22 #include "dce-libc-private.h" 115 // extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen);. 116 extern int  #include #include #include unsigned int of_irq_workarounds; extern struct device_node *of_irq_dflt_pic;  #include #include "libload.h" char *fnames[] = { "open", *farray[sizeof fnames / sizeof (char *)]; extern int errno; /* Needed because all  #include "config.h" #include /* size_t, ptrdiff_t */ #include void* parameters, NC_Dispatch*, NC*); extern int HDF4_open(const char  1.53 | extern int mvsnprintf(char *, size_t, const char *, va_list); davehart 1.53 errno = preserved_errno; \ davehart 1.55 | } davehart 1.55 | davehart 1.40.1.1  #include #include #include #include defaultsNrrd.c */ extern nrrd_export int nrrdDefWrtEncoding; extern  extern _X_EXPORT void (*OsVendorVErrorFProc)(const char *, va_list args);.

Copyright C 2016, 2020 AMPL Optimization, Inc.; written by

The value of errno is  errno. OS/161 Reference Manual. Name.

From patchwork Mon Oct 1 21:37:35 2018 Content-Type: text

*/, */. #ifdef HAVE_ERRNO_AS_DEFINE #include /* errno is a define */ #else extern int errno; /* declare errno */ #endif #endif /* #ifndef  void __stdcall (*TGLUTessErrorProc)(unsigned ErrNo); typedef void __stdcall PACKAGE bool GL_EXT_subtexture; extern PACKAGE bool GL_EXT_texture;  #include #endif #ifdef HAVE_ERRNO_H #include #else extern int errno; #endif int main(void) { int fd; if (chdir("conftest.d")!=0) exit(1); if (symlink("foo","bar")!=0)  9 #include 93 extern const char *ipv6_router_address(struct in6_addr *in6addr); 111 extern const char *getifaddr(char *ifname, int family);. 224 extern void (*error_handler_hook)(uint my_err, const char *str, myf MyFlags); 679 errno/my_errno with %d followed by strerror as %s, as the last. #define operror(str) eprintf("%s: %s", str, strerror(errno)) #define oputa(aline) format_printf(1, 2); extern void VDECL(tfprintf,(TFILE *file, CONST char *fmt, .

Example 1 - to show a pitfall: File stdio.h: int errno; /* other stuff*/ In C programming language, there is an external variable called “errno”. Yes, you can definitely say things like if (errno == ENOENT) { }, and that is the common and recommended way of doing it. In general, do not use errno to determine that an error has occurred. Check the return value of the function, and if the return value indicates an error, then check errno to see what the error was. (More on this below.) In POSIX.1, errno is defined as an external global variable. But this definition is unacceptable in a multithreaded environment, because its use can result in nondeterministic results. The problem is that two or more threads can encounter errors, all causing the same errno to be set.
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Do not do this. It long ago ceased to be necessary, and it will cause problems with modern versions of the C library. It shows that errno is declared as extern, and when we use errno we can assign value to it directly. It means that errno is defined and allocated somewhere else, where is defined indeed?

Return 0 if ok else errno */ extern int vdlGetCapability(VDL_HANDLE,  n); /* * These are defined internally by GCC * * extern char *memcpy(void *dst, const void *src, int len); * extern size_t strlen(const char *s); */ extern int errno;  #include #include #include extern int __pthread_chdir(char *path); int pthread_chdir_np(char *path) { return  stdout */ extern TFILE *tferr; /* stderr */ extern int errno; #define operror(str) CONST char *mode)); extern int FDECL(tfclose,(TFILE *file)); extern void  errno; return ret; } extern void parent_linux_catchall_signals(void); extern void errno; } extern int parent_linux_write(int fd, char *buf, int count); extern int  #undef errno extern int errno; +/* forward declaration */ +extern int _close(int); b/newlib/libc/reent/fcntlr.c @@ -21,6 +21,9 @@ #undef errno extern int errno;  package scala.scalanative. package libc. import scalanative.unsafe._. @extern. object errno {.
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But in an environment that supports threads, the process address space is shared among multiple threads, and each thread needs its own local  Valid error numbers are all nonzero; errno is never set to zero by any system It was common in traditional C to declare errno manually (i.e., extern int errno)  37 * File: errno.h. 38 *. 39 * Description: functions and variables missing 47 # define __ERRNO_H__. 48. 49 #ifdef __cplusplus.

# define _SYS_ERRNO_H_. #include .
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ProcessHacker/mxml/mxml.h Source File - Process Hacker

Its use is implicit. When extern is used with a variable, it’s only declared, not defined. extern int _doserrno; extern int errno; extern char *_sys_errlist[ ]; extern int _sys_nerr; Remarks.

Copyright 2018, UCAR/Unidata. See netcdf/COPYRIGHT file for

@@ -413,8 +412,7  extern int remove (__const char *__filename); /* Rename file OLD to NEW. (FILE *__stream); /* Print a message describing the meaning of the value of errno. input/lib/libc/include/errno.h 00278 #endif 00279 00280 #ifdef LOSCFG_MEM_MUL_POOL 00281 00299 extern UINT32 LOS_MemDeInit(VOID *pool); 00300  7 #include 8 #include 9 #include 10 struct path *, unsigned int); 65 extern struct dentry *user_path_create(int,  free(start);.

Description. The __errno_location() function shall return the address of the errno variable for the current thread. __errno_location() is not in the source standard; it is only in the binary standard. errno, perror().