add ydb deps

1 files changed, 259 insertions, 0 deletions

diff --git a/contrib/tools/python/src/Python/thread_sgi.h b/contrib/tools/python/src/Python/thread_sgi.h
new file mode 100644
index 0000000000..771ab2cc60
--- /dev/null
+++ b/contrib/tools/python/src/Python/thread_sgi.h
@@ -0,0 +1,259 @@
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/prctl.h>
+#include <ulocks.h>
+#include <errno.h>
+
+#define HDR_SIZE        2680    /* sizeof(ushdr_t) */
+#define MAXPROC         100     /* max # of threads that can be started */
+
+static usptr_t *shared_arena;
+static ulock_t count_lock;      /* protection for some variables */
+static ulock_t wait_lock;       /* lock used to wait for other threads */
+static int waiting_for_threads; /* protected by count_lock */
+static int nthreads;            /* protected by count_lock */
+static int exit_status;
+static int exiting;             /* we're already exiting (for maybe_exit) */
+static pid_t my_pid;            /* PID of main thread */
+static struct pidlist {
+    pid_t parent;
+    pid_t child;
+} pidlist[MAXPROC];     /* PIDs of other threads; protected by count_lock */
+static int maxpidindex;         /* # of PIDs in pidlist */
+/*
+ * Initialization.
+ */
+static void PyThread__init_thread(void)
+{
+#ifdef USE_DL
+    long addr, size;
+#endif /* USE_DL */
+
+
+#ifdef USE_DL
+    if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
+        perror("usconfig - CONF_INITSIZE (check)");
+    if (usconfig(CONF_INITSIZE, size) < 0)
+        perror("usconfig - CONF_INITSIZE (reset)");
+    addr = (long) dl_getrange(size + HDR_SIZE);
+    dprintf(("trying to use addr %p-%p for shared arena\n", addr, addr+size));
+    errno = 0;
+    if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 && errno != 0)
+        perror("usconfig - CONF_ATTACHADDR (set)");
+#endif /* USE_DL */
+    if (usconfig(CONF_INITUSERS, 16) < 0)
+        perror("usconfig - CONF_INITUSERS");
+    my_pid = getpid();          /* so that we know which is the main thread */
+    if (usconfig(CONF_ARENATYPE, US_SHAREDONLY) < 0)
+        perror("usconfig - CONF_ARENATYPE");
+    usconfig(CONF_LOCKTYPE, US_DEBUG); /* XXX */
+#ifdef Py_DEBUG
+    if (thread_debug & 4)
+        usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);
+    else if (thread_debug & 2)
+        usconfig(CONF_LOCKTYPE, US_DEBUG);
+#endif /* Py_DEBUG */
+    if ((shared_arena = usinit(tmpnam(0))) == 0)
+        perror("usinit");
+#ifdef USE_DL
+    if (usconfig(CONF_ATTACHADDR, addr) < 0) /* reset address */
+        perror("usconfig - CONF_ATTACHADDR (reset)");
+#endif /* USE_DL */
+    if ((count_lock = usnewlock(shared_arena)) == NULL)
+        perror("usnewlock (count_lock)");
+    (void) usinitlock(count_lock);
+    if ((wait_lock = usnewlock(shared_arena)) == NULL)
+        perror("usnewlock (wait_lock)");
+    dprintf(("arena start: %p, arena size: %ld\n",  shared_arena, (long) usconfig(CONF_GETSIZE, shared_arena)));
+}
+
+/*
+ * Thread support.
+ */
+
+static void clean_threads(void)
+{
+    int i, j;
+    pid_t mypid, pid;
+
+    /* clean up any exited threads */
+    mypid = getpid();
+    i = 0;
+    while (i < maxpidindex) {
+        if (pidlist[i].parent == mypid && (pid = pidlist[i].child) > 0) {
+            pid = waitpid(pid, 0, WNOHANG);
+            if (pid > 0) {
+                /* a thread has exited */
+                pidlist[i] = pidlist[--maxpidindex];
+                /* remove references to children of dead proc */
+                for (j = 0; j < maxpidindex; j++)
+                    if (pidlist[j].parent == pid)
+                        pidlist[j].child = -1;
+                continue; /* don't increment i */
+            }
+        }
+        i++;
+    }
+    /* clean up the list */
+    i = 0;
+    while (i < maxpidindex) {
+        if (pidlist[i].child == -1) {
+            pidlist[i] = pidlist[--maxpidindex];
+            continue; /* don't increment i */
+        }
+        i++;
+    }
+}
+
+long PyThread_start_new_thread(void (*func)(void *), void *arg)
+{
+#ifdef USE_DL
+    long addr, size;
+    static int local_initialized = 0;
+#endif /* USE_DL */
+    int success = 0;            /* init not needed when SOLARIS_THREADS and */
+                /* C_THREADS implemented properly */
+
+    dprintf(("PyThread_start_new_thread called\n"));
+    if (!initialized)
+        PyThread_init_thread();
+    switch (ussetlock(count_lock)) {
+    case 0: return 0;
+    case -1: perror("ussetlock (count_lock)");
+    }
+    if (maxpidindex >= MAXPROC)
+        success = -1;
+    else {
+#ifdef USE_DL
+        if (!local_initialized) {
+            if ((size = usconfig(CONF_INITSIZE, 64*1024)) < 0)
+                perror("usconfig - CONF_INITSIZE (check)");
+            if (usconfig(CONF_INITSIZE, size) < 0)
+                perror("usconfig - CONF_INITSIZE (reset)");
+            addr = (long) dl_getrange(size + HDR_SIZE);
+            dprintf(("trying to use addr %p-%p for sproc\n",
+                     addr, addr+size));
+            errno = 0;
+            if ((addr = usconfig(CONF_ATTACHADDR, addr)) < 0 &&
+                errno != 0)
+                perror("usconfig - CONF_ATTACHADDR (set)");
+        }
+#endif /* USE_DL */
+        clean_threads();
+        if ((success = sproc(func, PR_SALL, arg)) < 0)
+            perror("sproc");
+#ifdef USE_DL
+        if (!local_initialized) {
+            if (usconfig(CONF_ATTACHADDR, addr) < 0)
+                /* reset address */
+                perror("usconfig - CONF_ATTACHADDR (reset)");
+            local_initialized = 1;
+        }
+#endif /* USE_DL */
+        if (success >= 0) {
+            nthreads++;
+            pidlist[maxpidindex].parent = getpid();
+            pidlist[maxpidindex++].child = success;
+            dprintf(("pidlist[%d] = %d\n",
+                     maxpidindex-1, success));
+        }
+    }
+    if (usunsetlock(count_lock) < 0)
+        perror("usunsetlock (count_lock)");
+    return success;
+}
+
+long PyThread_get_thread_ident(void)
+{
+    return getpid();
+}
+
+void PyThread_exit_thread(void)
+{
+    dprintf(("PyThread_exit_thread called\n"));
+    if (!initialized)
+        exit(0);
+    if (ussetlock(count_lock) < 0)
+        perror("ussetlock (count_lock)");
+    nthreads--;
+    if (getpid() == my_pid) {
+        /* main thread; wait for other threads to exit */
+        exiting = 1;
+        waiting_for_threads = 1;
+        if (ussetlock(wait_lock) < 0)
+            perror("ussetlock (wait_lock)");
+        for (;;) {
+            if (nthreads < 0) {
+                dprintf(("really exit (%d)\n", exit_status));
+                exit(exit_status);
+            }
+            if (usunsetlock(count_lock) < 0)
+                perror("usunsetlock (count_lock)");
+            dprintf(("waiting for other threads (%d)\n", nthreads));
+            if (ussetlock(wait_lock) < 0)
+                perror("ussetlock (wait_lock)");
+            if (ussetlock(count_lock) < 0)
+                perror("ussetlock (count_lock)");
+        }
+    }
+    /* not the main thread */
+    if (waiting_for_threads) {
+        dprintf(("main thread is waiting\n"));
+        if (usunsetlock(wait_lock) < 0)
+            perror("usunsetlock (wait_lock)");
+    }
+    if (usunsetlock(count_lock) < 0)
+        perror("usunsetlock (count_lock)");
+    _exit(0);
+}
+
+/*
+ * Lock support.
+ */
+PyThread_type_lock PyThread_allocate_lock(void)
+{
+    ulock_t lock;
+
+    dprintf(("PyThread_allocate_lock called\n"));
+    if (!initialized)
+        PyThread_init_thread();
+
+    if ((lock = usnewlock(shared_arena)) == NULL)
+        perror("usnewlock");
+    (void) usinitlock(lock);
+    dprintf(("PyThread_allocate_lock() -> %p\n", lock));
+    return (PyThread_type_lock) lock;
+}
+
+void PyThread_free_lock(PyThread_type_lock lock)
+{
+    dprintf(("PyThread_free_lock(%p) called\n", lock));
+    usfreelock((ulock_t) lock, shared_arena);
+}
+
+int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
+{
+    int success;
+
+    dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
+    errno = 0;                  /* clear it just in case */
+    if (waitflag)
+        success = ussetlock((ulock_t) lock);
+    else
+        success = uscsetlock((ulock_t) lock, 1); /* Try it once */
+    if (success < 0)
+        perror(waitflag ? "ussetlock" : "uscsetlock");
+    dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
+    return success;
+}
+
+void PyThread_release_lock(PyThread_type_lock lock)
+{
+    dprintf(("PyThread_release_lock(%p) called\n", lock));
+    if (usunsetlock((ulock_t) lock) < 0)
+        perror("usunsetlock");
+}