1 files changed, 0 insertions, 695 deletions

diff --git a/minadbd/fdevent.c b/minadbd/fdevent.c
deleted file mode 100644
index 5c374a71b..000000000
--- a/minadbd/fdevent.c
+++ /dev/null
@@ -1,695 +0,0 @@
-/* http://frotznet.googlecode.com/svn/trunk/utils/fdevent.c
-**
-** Copyright 2006, Brian Swetland <swetland@frotz.net>
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-#include <sys/ioctl.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include <fcntl.h>
-
-#include <stdarg.h>
-#include <stddef.h>
-
-#include "fdevent.h"
-#include "transport.h"
-#include "sysdeps.h"
-
-
-/* !!! Do not enable DEBUG for the adb that will run as the server:
-** both stdout and stderr are used to communicate between the client
-** and server. Any extra output will cause failures.
-*/
-#define DEBUG 0   /* non-0 will break adb server */
-
-// This socket is used when a subproc shell service exists.
-// It wakes up the fdevent_loop() and cause the correct handling
-// of the shell's pseudo-tty master. I.e. force close it.
-int SHELL_EXIT_NOTIFY_FD = -1;
-
-static void fatal(const char *fn, const char *fmt, ...)
-{
-    va_list ap;
-    va_start(ap, fmt);
-    fprintf(stderr, "%s:", fn);
-    vfprintf(stderr, fmt, ap);
-    va_end(ap);
-    abort();
-}
-
-#define FATAL(x...) fatal(__FUNCTION__, x)
-
-#if DEBUG
-#define D(...) \
-    do { \
-        adb_mutex_lock(&D_lock);               \
-        int save_errno = errno;                \
-        fprintf(stderr, "%s::%s():", __FILE__, __FUNCTION__);  \
-        errno = save_errno;                    \
-        fprintf(stderr, __VA_ARGS__);          \
-        adb_mutex_unlock(&D_lock);             \
-        errno = save_errno;                    \
-    } while(0)
-static void dump_fde(fdevent *fde, const char *info)
-{
-    adb_mutex_lock(&D_lock);
-    fprintf(stderr,"FDE #%03d %c%c%c %s\n", fde->fd,
-            fde->state & FDE_READ ? 'R' : ' ',
-            fde->state & FDE_WRITE ? 'W' : ' ',
-            fde->state & FDE_ERROR ? 'E' : ' ',
-            info);
-    adb_mutex_unlock(&D_lock);
-}
-#else
-#define D(...) ((void)0)
-#define dump_fde(fde, info) do { } while(0)
-#endif
-
-#define FDE_EVENTMASK  0x00ff
-#define FDE_STATEMASK  0xff00
-
-#define FDE_ACTIVE     0x0100
-#define FDE_PENDING    0x0200
-#define FDE_CREATED    0x0400
-
-static void fdevent_plist_enqueue(fdevent *node);
-static void fdevent_plist_remove(fdevent *node);
-static fdevent *fdevent_plist_dequeue(void);
-static void fdevent_subproc_event_func(int fd, unsigned events, void *userdata);
-
-static fdevent list_pending = {
-    .next = &list_pending,
-    .prev = &list_pending,
-};
-
-static fdevent **fd_table = 0;
-static int fd_table_max = 0;
-
-#ifdef CRAPTASTIC
-//HAVE_EPOLL
-
-#include <sys/epoll.h>
-
-static int epoll_fd = -1;
-
-static void fdevent_init()
-{
-        /* XXX: what's a good size for the passed in hint? */
-    epoll_fd = epoll_create(256);
-
-    if(epoll_fd < 0) {
-        perror("epoll_create() failed");
-        exit(1);
-    }
-
-        /* mark for close-on-exec */
-    fcntl(epoll_fd, F_SETFD, FD_CLOEXEC);
-}
-
-static void fdevent_connect(fdevent *fde)
-{
-    struct epoll_event ev;
-
-    memset(&ev, 0, sizeof(ev));
-    ev.events = 0;
-    ev.data.ptr = fde;
-
-#if 0
-    if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fde->fd, &ev)) {
-        perror("epoll_ctl() failed\n");
-        exit(1);
-    }
-#endif
-}
-
-static void fdevent_disconnect(fdevent *fde)
-{
-    struct epoll_event ev;
-
-    memset(&ev, 0, sizeof(ev));
-    ev.events = 0;
-    ev.data.ptr = fde;
-
-        /* technically we only need to delete if we
-        ** were actively monitoring events, but let's
-        ** be aggressive and do it anyway, just in case
-        ** something's out of sync
-        */
-    epoll_ctl(epoll_fd, EPOLL_CTL_DEL, fde->fd, &ev);
-}
-
-static void fdevent_update(fdevent *fde, unsigned events)
-{
-    struct epoll_event ev;
-    int active;
-
-    active = (fde->state & FDE_EVENTMASK) != 0;
-
-    memset(&ev, 0, sizeof(ev));
-    ev.events = 0;
-    ev.data.ptr = fde;
-
-    if(events & FDE_READ) ev.events |= EPOLLIN;
-    if(events & FDE_WRITE) ev.events |= EPOLLOUT;
-    if(events & FDE_ERROR) ev.events |= (EPOLLERR | EPOLLHUP);
-
-    fde->state = (fde->state & FDE_STATEMASK) | events;
-
-    if(active) {
-            /* we're already active. if we're changing to *no*
-            ** events being monitored, we need to delete, otherwise
-            ** we need to just modify
-            */
-        if(ev.events) {
-            if(epoll_ctl(epoll_fd, EPOLL_CTL_MOD, fde->fd, &ev)) {
-                perror("epoll_ctl() failed\n");
-                exit(1);
-            }
-        } else {
-            if(epoll_ctl(epoll_fd, EPOLL_CTL_DEL, fde->fd, &ev)) {
-                perror("epoll_ctl() failed\n");
-                exit(1);
-            }
-        }
-    } else {
-            /* we're not active.  if we're watching events, we need
-            ** to add, otherwise we can just do nothing
-            */
-        if(ev.events) {
-            if(epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fde->fd, &ev)) {
-                perror("epoll_ctl() failed\n");
-                exit(1);
-            }
-        }
-    }
-}
-
-static void fdevent_process()
-{
-    struct epoll_event events[256];
-    fdevent *fde;
-    int i, n;
-
-    n = epoll_wait(epoll_fd, events, 256, -1);
-
-    if(n < 0) {
-        if(errno == EINTR) return;
-        perror("epoll_wait");
-        exit(1);
-    }
-
-    for(i = 0; i < n; i++) {
-        struct epoll_event *ev = events + i;
-        fde = ev->data.ptr;
-
-        if(ev->events & EPOLLIN) {
-            fde->events |= FDE_READ;
-        }
-        if(ev->events & EPOLLOUT) {
-            fde->events |= FDE_WRITE;
-        }
-        if(ev->events & (EPOLLERR | EPOLLHUP)) {
-            fde->events |= FDE_ERROR;
-        }
-        if(fde->events) {
-            if(fde->state & FDE_PENDING) continue;
-            fde->state |= FDE_PENDING;
-            fdevent_plist_enqueue(fde);
-        }
-    }
-}
-
-#else /* USE_SELECT */
-
-#ifdef HAVE_WINSOCK
-#include <winsock2.h>
-#else
-#include <sys/select.h>
-#endif
-
-static fd_set read_fds;
-static fd_set write_fds;
-static fd_set error_fds;
-
-static int select_n = 0;
-
-static void fdevent_init(void)
-{
-    FD_ZERO(&read_fds);
-    FD_ZERO(&write_fds);
-    FD_ZERO(&error_fds);
-}
-
-static void fdevent_connect(fdevent *fde)
-{
-    if(fde->fd >= select_n) {
-        select_n = fde->fd + 1;
-    }
-}
-
-static void fdevent_disconnect(fdevent *fde)
-{
-    int i, n;
-
-    FD_CLR(fde->fd, &read_fds);
-    FD_CLR(fde->fd, &write_fds);
-    FD_CLR(fde->fd, &error_fds);
-
-    for(n = 0, i = 0; i < select_n; i++) {
-        if(fd_table[i] != 0) n = i;
-    }
-    select_n = n + 1;
-}
-
-static void fdevent_update(fdevent *fde, unsigned events)
-{
-    if(events & FDE_READ) {
-        FD_SET(fde->fd, &read_fds);
-    } else {
-        FD_CLR(fde->fd, &read_fds);
-    }
-    if(events & FDE_WRITE) {
-        FD_SET(fde->fd, &write_fds);
-    } else {
-        FD_CLR(fde->fd, &write_fds);
-    }
-    if(events & FDE_ERROR) {
-        FD_SET(fde->fd, &error_fds);
-    } else {
-        FD_CLR(fde->fd, &error_fds);
-    }
-
-    fde->state = (fde->state & FDE_STATEMASK) | events;
-}
-
-/* Looks at fd_table[] for bad FDs and sets bit in fds.
-** Returns the number of bad FDs.
-*/
-static int fdevent_fd_check(fd_set *fds)
-{
-    int i, n = 0;
-    fdevent *fde;
-
-    for(i = 0; i < select_n; i++) {
-        fde = fd_table[i];
-        if(fde == 0) continue;
-        if(fcntl(i, F_GETFL, NULL) < 0) {
-            FD_SET(i, fds);
-            n++;
-            // fde->state |= FDE_DONT_CLOSE;
-
-        }
-    }
-    return n;
-}
-
-#if !DEBUG
-static inline void dump_all_fds(const char *extra_msg) {}
-#else
-static void dump_all_fds(const char *extra_msg)
-{
-int i;
-    fdevent *fde;
-    // per fd: 4 digits (but really: log10(FD_SETSIZE)), 1 staus, 1 blank
-    char msg_buff[FD_SETSIZE*6 + 1], *pb=msg_buff;
-    size_t max_chars = FD_SETSIZE * 6 + 1;
-    int printed_out;
-#define SAFE_SPRINTF(...)                                                    \
-    do {                                                                     \
-        printed_out = snprintf(pb, max_chars, __VA_ARGS__);                  \
-        if (printed_out <= 0) {                                              \
-            D("... snprintf failed.\n");                                     \
-            return;                                                          \
-        }                                                                    \
-        if (max_chars < (unsigned int)printed_out) {                         \
-            D("... snprintf out of space.\n");                               \
-            return;                                                          \
-        }                                                                    \
-        pb += printed_out;                                                   \
-        max_chars -= printed_out;                                            \
-    } while(0)
-
-    for(i = 0; i < select_n; i++) {
-        fde = fd_table[i];
-        SAFE_SPRINTF("%d", i);
-        if(fde == 0) {
-            SAFE_SPRINTF("? ");
-            continue;
-        }
-        if(fcntl(i, F_GETFL, NULL) < 0) {
-            SAFE_SPRINTF("b");
-        }
-        SAFE_SPRINTF(" ");
-    }
-    D("%s fd_table[]->fd = {%s}\n", extra_msg, msg_buff);
-}
-#endif
-
-static void fdevent_process()
-{
-    int i, n;
-    fdevent *fde;
-    unsigned events;
-    fd_set rfd, wfd, efd;
-
-    memcpy(&rfd, &read_fds, sizeof(fd_set));
-    memcpy(&wfd, &write_fds, sizeof(fd_set));
-    memcpy(&efd, &error_fds, sizeof(fd_set));
-
-    dump_all_fds("pre select()");
-
-    n = select(select_n, &rfd, &wfd, &efd, NULL);
-    int saved_errno = errno;
-    D("select() returned n=%d, errno=%d\n", n, n<0?saved_errno:0);
-
-    dump_all_fds("post select()");
-
-    if(n < 0) {
-        switch(saved_errno) {
-        case EINTR: return;
-        case EBADF:
-            // Can't trust the FD sets after an error.
-            FD_ZERO(&wfd);
-            FD_ZERO(&efd);
-            FD_ZERO(&rfd);
-            break;
-        default:
-            D("Unexpected select() error=%d\n", saved_errno);
-            return;
-        }
-    }
-    if(n <= 0) {
-        // We fake a read, as the rest of the code assumes
-        // that errors will be detected at that point.
-        n = fdevent_fd_check(&rfd);
-    }
-
-    for(i = 0; (i < select_n) && (n > 0); i++) {
-        events = 0;
-        if(FD_ISSET(i, &rfd)) { events |= FDE_READ; n--; }
-        if(FD_ISSET(i, &wfd)) { events |= FDE_WRITE; n--; }
-        if(FD_ISSET(i, &efd)) { events |= FDE_ERROR; n--; }
-
-        if(events) {
-            fde = fd_table[i];
-            if(fde == 0)
-              FATAL("missing fde for fd %d\n", i);
-
-            fde->events |= events;
-
-            D("got events fde->fd=%d events=%04x, state=%04x\n",
-                fde->fd, fde->events, fde->state);
-            if(fde->state & FDE_PENDING) continue;
-            fde->state |= FDE_PENDING;
-            fdevent_plist_enqueue(fde);
-        }
-    }
-}
-
-#endif
-
-static void fdevent_register(fdevent *fde)
-{
-    if(fde->fd < 0) {
-        FATAL("bogus negative fd (%d)\n", fde->fd);
-    }
-
-    if(fde->fd >= fd_table_max) {
-        int oldmax = fd_table_max;
-        if(fde->fd > 32000) {
-            FATAL("bogus huuuuge fd (%d)\n", fde->fd);
-        }
-        if(fd_table_max == 0) {
-            fdevent_init();
-            fd_table_max = 256;
-        }
-        while(fd_table_max <= fde->fd) {
-            fd_table_max *= 2;
-        }
-        fd_table = realloc(fd_table, sizeof(fdevent*) * fd_table_max);
-        if(fd_table == 0) {
-            FATAL("could not expand fd_table to %d entries\n", fd_table_max);
-        }
-        memset(fd_table + oldmax, 0, sizeof(int) * (fd_table_max - oldmax));
-    }
-
-    fd_table[fde->fd] = fde;
-}
-
-static void fdevent_unregister(fdevent *fde)
-{
-    if((fde->fd < 0) || (fde->fd >= fd_table_max)) {
-        FATAL("fd out of range (%d)\n", fde->fd);
-    }
-
-    if(fd_table[fde->fd] != fde) {
-        FATAL("fd_table out of sync [%d]\n", fde->fd);
-    }
-
-    fd_table[fde->fd] = 0;
-
-    if(!(fde->state & FDE_DONT_CLOSE)) {
-        dump_fde(fde, "close");
-        adb_close(fde->fd);
-    }
-}
-
-static void fdevent_plist_enqueue(fdevent *node)
-{
-    fdevent *list = &list_pending;
-
-    node->next = list;
-    node->prev = list->prev;
-    node->prev->next = node;
-    list->prev = node;
-}
-
-static void fdevent_plist_remove(fdevent *node)
-{
-    node->prev->next = node->next;
-    node->next->prev = node->prev;
-    node->next = 0;
-    node->prev = 0;
-}
-
-static fdevent *fdevent_plist_dequeue(void)
-{
-    fdevent *list = &list_pending;
-    fdevent *node = list->next;
-
-    if(node == list) return 0;
-
-    list->next = node->next;
-    list->next->prev = list;
-    node->next = 0;
-    node->prev = 0;
-
-    return node;
-}
-
-static void fdevent_call_fdfunc(fdevent* fde)
-{
-    unsigned events = fde->events;
-    fde->events = 0;
-    if(!(fde->state & FDE_PENDING)) return;
-    fde->state &= (~FDE_PENDING);
-    dump_fde(fde, "callback");
-    fde->func(fde->fd, events, fde->arg);
-}
-
-static void fdevent_subproc_event_func(int fd, unsigned ev, void *userdata)
-{
-
-    D("subproc handling on fd=%d ev=%04x\n", fd, ev);
-
-    // Hook oneself back into the fde's suitable for select() on read.
-    if((fd < 0) || (fd >= fd_table_max)) {
-        FATAL("fd %d out of range for fd_table \n", fd);
-    }
-    fdevent *fde = fd_table[fd];
-    fdevent_add(fde, FDE_READ);
-
-    if(ev & FDE_READ){
-      int subproc_fd;
-
-      if(readx(fd, &subproc_fd, sizeof(subproc_fd))) {
-          FATAL("Failed to read the subproc's fd from fd=%d\n", fd);
-      }
-      if((subproc_fd < 0) || (subproc_fd >= fd_table_max)) {
-          D("subproc_fd %d out of range 0, fd_table_max=%d\n",
-            subproc_fd, fd_table_max);
-          return;
-      }
-      fdevent *subproc_fde = fd_table[subproc_fd];
-      if(!subproc_fde) {
-          D("subproc_fd %d cleared from fd_table\n", subproc_fd);
-          return;
-      }
-      if(subproc_fde->fd != subproc_fd) {
-          // Already reallocated?
-          D("subproc_fd %d != fd_table[].fd %d\n", subproc_fd, subproc_fde->fd);
-          return;
-      }
-
-      subproc_fde->force_eof = 1;
-
-      int rcount = 0;
-      ioctl(subproc_fd, FIONREAD, &rcount);
-      D("subproc with fd=%d  has rcount=%d err=%d\n",
-        subproc_fd, rcount, errno);
-
-      if(rcount) {
-        // If there is data left, it will show up in the select().
-        // This works because there is no other thread reading that
-        // data when in this fd_func().
-        return;
-      }
-
-      D("subproc_fde.state=%04x\n", subproc_fde->state);
-      subproc_fde->events |= FDE_READ;
-      if(subproc_fde->state & FDE_PENDING) {
-        return;
-      }
-      subproc_fde->state |= FDE_PENDING;
-      fdevent_call_fdfunc(subproc_fde);
-    }
-}
-
-fdevent *fdevent_create(int fd, fd_func func, void *arg)
-{
-    fdevent *fde = (fdevent*) malloc(sizeof(fdevent));
-    if(fde == 0) return 0;
-    fdevent_install(fde, fd, func, arg);
-    fde->state |= FDE_CREATED;
-    return fde;
-}
-
-void fdevent_destroy(fdevent *fde)
-{
-    if(fde == 0) return;
-    if(!(fde->state & FDE_CREATED)) {
-        FATAL("fde %p not created by fdevent_create()\n", fde);
-    }
-    fdevent_remove(fde);
-}
-
-void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg)
-{
-    memset(fde, 0, sizeof(fdevent));
-    fde->state = FDE_ACTIVE;
-    fde->fd = fd;
-    fde->force_eof = 0;
-    fde->func = func;
-    fde->arg = arg;
-
-#ifndef HAVE_WINSOCK
-    fcntl(fd, F_SETFL, O_NONBLOCK);
-#endif
-    fdevent_register(fde);
-    dump_fde(fde, "connect");
-    fdevent_connect(fde);
-    fde->state |= FDE_ACTIVE;
-}
-
-void fdevent_remove(fdevent *fde)
-{
-    if(fde->state & FDE_PENDING) {
-        fdevent_plist_remove(fde);
-    }
-
-    if(fde->state & FDE_ACTIVE) {
-        fdevent_disconnect(fde);
-        dump_fde(fde, "disconnect");
-        fdevent_unregister(fde);
-    }
-
-    fde->state = 0;
-    fde->events = 0;
-}
-
-
-void fdevent_set(fdevent *fde, unsigned events)
-{
-    events &= FDE_EVENTMASK;
-
-    if((fde->state & FDE_EVENTMASK) == events) return;
-
-    if(fde->state & FDE_ACTIVE) {
-        fdevent_update(fde, events);
-        dump_fde(fde, "update");
-    }
-
-    fde->state = (fde->state & FDE_STATEMASK) | events;
-
-    if(fde->state & FDE_PENDING) {
-            /* if we're pending, make sure
-            ** we don't signal an event that
-            ** is no longer wanted.
-            */
-        fde->events &= (~events);
-        if(fde->events == 0) {
-            fdevent_plist_remove(fde);
-            fde->state &= (~FDE_PENDING);
-        }
-    }
-}
-
-void fdevent_add(fdevent *fde, unsigned events)
-{
-    fdevent_set(
-        fde, (fde->state & FDE_EVENTMASK) | (events & FDE_EVENTMASK));
-}
-
-void fdevent_del(fdevent *fde, unsigned events)
-{
-    fdevent_set(
-        fde, (fde->state & FDE_EVENTMASK) & (~(events & FDE_EVENTMASK)));
-}
-
-void fdevent_subproc_setup()
-{
-    int s[2];
-
-    if(adb_socketpair(s)) {
-        FATAL("cannot create shell-exit socket-pair\n");
-    }
-    SHELL_EXIT_NOTIFY_FD = s[0];
-    fdevent *fde;
-    fde = fdevent_create(s[1], fdevent_subproc_event_func, NULL);
-    if(!fde)
-      FATAL("cannot create fdevent for shell-exit handler\n");
-    fdevent_add(fde, FDE_READ);
-}
-
-void fdevent_loop()
-{
-    fdevent *fde;
-    fdevent_subproc_setup();
-
-    for(;;) {
-        D("--- ---- waiting for events\n");
-
-        fdevent_process();
-
-        while((fde = fdevent_plist_dequeue())) {
-            fdevent_call_fdfunc(fde);
-        }
-    }
-}