Initial version.

1 files changed, 285 insertions, 0 deletions

diff --git a/src/nxt_unix.h b/src/nxt_unix.h
new file mode 100644
index 00000000..41b9ae3c
--- /dev/null
+++ b/src/nxt_unix.h
@@ -0,0 +1,285 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+
+#ifndef _NXT_UNIX_H_INCLUDED_
+#define _NXT_UNIX_H_INCLUDED_
+
+
+#if (NXT_LINUX)
+
+#ifdef _FORTIFY_SOURCE
+/*
+ * _FORTIFY_SOURCE
+ *     may call sigaltstack() while _longjmp() checking;
+ *     may cause _longjmp() to fail with message:
+ *         "longjmp() causes uninitialized stack frame";
+ *     does not allow to use "(void) write()";
+ *     does surplus checks.
+ */
+#undef _FORTIFY_SOURCE
+#endif
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE                 /* pread(), pwrite(), gethostname(). */
+#endif
+
+#define _FILE_OFFSET_BITS  64
+
+#include <malloc.h>                 /* malloc_usable_size(). */
+#include <sys/syscall.h>            /* syscall(SYS_gettid). */
+
+#if (NXT_GETRANDOM)
+#include <linux/random.h>           /* getrandom(). */
+#endif
+
+#if (__GLIBC__ >= 2 && __GLIBC_MINOR__ >= 4)
+/*
+ * POSIX semaphores using NPTL atomic/futex operations
+ * were introduced during glibc 2.3 development time.
+ */
+#define NXT_HAVE_SEM_TRYWAIT_FAST  1
+#endif
+
+#endif /* NXT_LINUX */
+
+
+#if (NXT_FREEBSD)
+
+#if (NXT_HAVE_MALLOC_USABLE_SIZE)
+#include <malloc_np.h>              /* malloc_usable_size(). */
+#endif
+
+#if (__FreeBSD_version >= 900007)
+/* POSIX semaphores using atomic/umtx. */
+#define NXT_HAVE_SEM_TRYWAIT_FAST  1
+#endif
+
+#endif /* NXT_FREEBSD */
+
+
+#if (NXT_SOLARIS)
+
+#define _FILE_OFFSET_BITS  64       /* Must be before <sys/types.h>. */
+
+#ifndef _REENTRANT                  /* May be set by "-mt" options. */
+#define _REENTRANT                  /* Thread safe errno. */
+#endif
+
+#define _POSIX_PTHREAD_SEMANTICS    /* 2 arguments in sigwait(). */
+
+/*
+ * Solaris provides two sockets API:
+ *
+ * 1) 4.3BSD sockets (int instead of socklen_t in accept(), etc.;
+ *    struct msghdr.msg_accrights) in libsocket;
+ * 2) X/Open sockets (socklen_t, struct msghdr.msg_control) with __xnet_
+ *    function name prefix in libxnet and libsocket.
+ */
+
+/* Enable X/Open sockets API. */
+#define _XOPEN_SOURCE
+#define _XOPEN_SOURCE_EXTENDED  1
+/* Enable Solaris extensions disabled by _XOPEN_SOURCE. */
+#define __EXTENSIONS__
+
+#endif /* NXT_SOLARIS */
+
+
+#if (NXT_MACOSX)
+
+#define _XOPEN_SOURCE               /* ucontext(3). */
+#define _DARWIN_C_SOURCE            /* pthread_threadid_np(), mach_port_t. */
+
+#include <mach/mach_time.h>         /* mach_absolute_time(). */
+#include <malloc/malloc.h>          /* malloc_size(). */
+
+#endif /* NXT_MACOSX */
+
+
+#if (NXT_AIX)
+
+#define _THREAD_SAFE                /* Must before any include. */
+
+#endif /* NXT_AIX */
+
+
+#if (NXT_HPUX)
+
+#define _FILE_OFFSET_BITS  64
+
+/*
+ * HP-UX provides three sockets API:
+ *
+ * 1) 4.3BSD sockets (int instead of socklen_t in accept(), etc.;
+ *    struct msghdr.msg_accrights) in libc;
+ * 2) X/Open sockets (socklen_t, struct msghdr.msg_control) with _xpg_
+ *    function name prefix in libc;
+ * 3) and X/Open sockets (socklen_t, struct msghdr.msg_control) in libxnet.
+ */
+
+/* Enable X/Open sockets API. */
+#define _XOPEN_SOURCE
+#define _XOPEN_SOURCE_EXTENDED
+/* Enable static function wrappers for _xpg_ X/Open sockets API in libc. */
+#define _HPUX_ALT_XOPEN_SOCKET_API
+
+#include <sys/mpctl.h>
+
+#if (NXT_HAVE_HG_GETHRTIME)
+#include <sys/mercury.h>
+#endif
+
+#endif /* NXT_HPUX */
+
+
+#if (NXT_HAVE_ALLOCA_H)
+#include <alloca.h>
+#endif
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <limits.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <poll.h>
+#include <pwd.h>
+#include <semaphore.h>
+#include <setjmp.h>
+#include <sched.h>
+#include <signal.h>
+#if (NXT_HAVE_POSIX_SPAWN)
+#include <spawn.h>
+#endif
+#include <stdarg.h>
+#include <stddef.h>                 /* offsetof() */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#if (NXT_HAVE_SYS_FILIO_H)
+#include <sys/filio.h>              /* FIONBIO */
+#endif
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/param.h>              /* MAXPATHLEN */
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#if (NXT_HAVE_UNIX_DOMAIN)
+#include <sys/un.h>
+#endif
+#include <sys/wait.h>
+#include <time.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+
+#if (NXT_THREADS)
+#include <pthread.h>
+#endif
+
+#if (NXT_HAVE_EPOLL)
+#include <sys/epoll.h>
+
+#ifdef EPOLLRDHUP
+/*
+ * Epoll edge-tiggered mode is pretty much useless without EPOLLRDHUP support.
+ */
+#define NXT_HAVE_EPOLL_EDGE  1
+#endif
+
+#endif
+
+#if (NXT_HAVE_SIGNALFD)
+#include <sys/signalfd.h>
+#endif
+
+#if (NXT_HAVE_EVENTFD)
+#include <sys/eventfd.h>
+#endif
+
+#if (NXT_HAVE_KQUEUE)
+#include <sys/event.h>
+#endif
+
+#if (NXT_HAVE_EVENTPORT)
+#include <port.h>
+#endif
+
+#if (NXT_HAVE_DEVPOLL)
+#include <sys/devpoll.h>
+#endif
+
+#if (NXT_HAVE_POLLSET)
+#include <sys/pollset.h>
+#endif
+
+#if (NXT_HAVE_LINUX_SENDFILE)
+#include <sys/sendfile.h>
+#endif
+
+#if (NXT_HAVE_SOLARIS_SENDFILEV)
+#include <sys/sendfile.h>
+#endif
+
+
+#if (NXT_TEST_BUILD)
+#include <unix/nxt_test_build.h>
+#endif
+
+
+/*
+ * On Linux IOV_MAX is 1024.  Linux uses kernel stack for 8 iovec's
+ * to avoid kernel allocation/deallocation.
+ *
+ * On FreeBSD IOV_MAX is 1024.  FreeBSD used kernel stack for 8 iovec's
+ * to avoid kernel allocation/deallocation until FreeBSD 5.2.
+ * FreeBSD 5.2 and later do not use stack at all.
+ *
+ * On Solaris IOV_MAX is 16 and Solaris uses only kernel stack.
+ *
+ * On MacOSX IOV_MAX is 1024.  MacOSX used kernel stack for 8 iovec's
+ * to avoid kernel allocation/deallocation until MacOSX 10.4 (Tiger).
+ * MacOSX 10.4 and later do not use stack at all.
+ *
+ * On NetBSD, OpenBSD, and DragonFlyBSD IOV_MAX is 1024.  All these OSes
+ * uses kernel stack for 8 iovec's to avoid kernel allocation/deallocation.
+ *
+ * On AIX and HP-UX IOV_MAX is 16.
+ */
+#define NXT_IOBUF_MAX  8
+
+
+typedef struct iovec   nxt_iobuf_t;
+
+#define                                                                       \
+nxt_iobuf_data(iob)                                                           \
+    (iob)->iov_base
+
+#define                                                                       \
+nxt_iobuf_size(iob)                                                           \
+    (iob)->iov_len
+
+#define                                                                       \
+nxt_iobuf_set(iob, p, size)                                                   \
+    do {                                                                      \
+        (iob)->iov_base = (void *) p;                                         \
+        (iob)->iov_len = size;                                                \
+    } while (0)
+
+#define                                                                       \
+nxt_iobuf_add(iob, size)                                                      \
+    (iob)->iov_len += size
+
+
+#endif /* _NXT_UNIX_H_INCLUDED_ */