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libbb: provide usleep() fallback implementation

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POSIX.1-2008 removed the usleep function, provide a fallback
implementaion using the recommended nanosleep().

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Bernhard Reutner-Fischer 2014-04-13 16:37:57 +02:00 • committed by Denys Vlasenko
parent 69b114fb8a
commit ad16741ccd
2 changed files with 32 additions and 2 deletions
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16
include/platform.h
View file

@ -373,6 +373,7 @@ typedef unsigned smalluint;
#define HAVE_STRSIGNAL 1
#define HAVE_STRVERSCMP 1
#define HAVE_VASPRINTF 1
#define HAVE_USLEEP 1
#define HAVE_UNLOCKED_STDIO 1
#define HAVE_UNLOCKED_LINE_OPS 1
#define HAVE_GETLINE 1
@ -381,8 +382,15 @@ typedef unsigned smalluint;
#define HAVE_NET_ETHERNET_H 1
#define HAVE_SYS_STATFS_H 1
#if defined(__UCLIBC__) && UCLIBC_VERSION < KERNEL_VERSION(0, 9, 32)
# undef HAVE_STRVERSCMP
#if defined(__UCLIBC__)
# if UCLIBC_VERSION < KERNEL_VERSION(0, 9, 32)
# undef HAVE_STRVERSCMP
# endif
# if UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 30)
# ifndef __UCLIBC_SUSV3_LEGACY__
# undef HAVE_USLEEP
# endif
# endif
#endif
#if defined(__WATCOMC__)
@ -519,6 +527,10 @@ extern char *strsep(char **stringp, const char *delim) FAST_FUNC;
# define strsignal(sig) get_signame(sig)
#endif
#ifndef HAVE_USLEEP
extern int usleep(unsigned) FAST_FUNC;
#endif
#ifndef HAVE_VASPRINTF
extern int vasprintf(char **string_ptr, const char *format, va_list p) FAST_FUNC;
#endif