Update parsing of dumpsys batterystats
[chromium-blink-merge.git] / tools / xdisplaycheck / xdisplaycheck.cc
blob6623153a846c06f5d618df5223682e77baff3e90
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 //
5 // This is a small program that tries to connect to the X server. It
6 // continually retries until it connects or 30 seconds pass. If it fails
7 // to connect to the X server or fails to find needed functiona, it returns
8 // an error code of -1.
9 //
10 // This is to help verify that a useful X server is available before we start
11 // start running tests on the build bots.
13 #include <errno.h>
14 #include <stdio.h>
15 #include <string.h>
16 #include <time.h>
17 #include <X11/Xlib.h>
19 #if defined(USE_AURA)
20 #include <X11/extensions/XInput2.h>
21 #endif
23 void Sleep(int duration_ms) {
24 struct timespec sleep_time, remaining;
26 // Contains the portion of duration_ms >= 1 sec.
27 sleep_time.tv_sec = duration_ms / 1000;
28 duration_ms -= sleep_time.tv_sec * 1000;
30 // Contains the portion of duration_ms < 1 sec.
31 sleep_time.tv_nsec = duration_ms * 1000 * 1000; // nanoseconds.
33 while (nanosleep(&sleep_time, &remaining) == -1 && errno == EINTR)
34 sleep_time = remaining;
37 class XScopedDisplay {
38 public:
39 XScopedDisplay() : display_(NULL) {}
40 ~XScopedDisplay() {
41 if (display_) XCloseDisplay(display_);
44 void set(Display* display) { display_ = display; }
45 Display* display() { return display_; }
47 private:
48 Display* display_;
51 int main(int argc, char* argv[]) {
52 XScopedDisplay scoped_display;
53 if (argv[1] && strcmp(argv[1], "--noserver") == 0) {
54 scoped_display.set(XOpenDisplay(NULL));
55 if (scoped_display.display()) {
56 fprintf(stderr, "Found unexpected connectable display %s\n",
57 XDisplayName(NULL));
59 // Return success when we got an unexpected display so that the code
60 // without the --noserver is the same, but slow, rather than inverted.
61 return !scoped_display.display();
64 int kNumTries = 78; // 78*77/2 * 10 = 30s of waiting
65 int tries;
66 for (tries = 0; tries < kNumTries; ++tries) {
67 scoped_display.set(XOpenDisplay(NULL));
68 if (scoped_display.display())
69 break;
70 Sleep(10 * tries);
73 if (!scoped_display.display()) {
74 fprintf(stderr, "Failed to connect to %s\n", XDisplayName(NULL));
75 return -1;
78 fprintf(stderr, "Connected after %d retries\n", tries);
80 #if defined(USE_AURA)
81 // Check for XInput2
82 int opcode, event, err;
83 if (!XQueryExtension(scoped_display.display(), "XInputExtension", &opcode,
84 &event, &err)) {
85 fprintf(stderr,
86 "Failed to get XInputExtension on %s.\n", XDisplayName(NULL));
87 return -2;
90 int major = 2, minor = 0;
91 if (XIQueryVersion(scoped_display.display(), &major, &minor) == BadRequest) {
92 fprintf(stderr,
93 "Server does not have XInput2 on %s.\n", XDisplayName(NULL));
94 return -3;
97 // Ask for the list of devices. This can cause some Xvfb to crash.
98 int count = 0;
99 XIDeviceInfo* devices =
100 XIQueryDevice(scoped_display.display(), XIAllDevices, &count);
101 if (devices)
102 XIFreeDeviceInfo(devices);
104 fprintf(stderr,
105 "XInput2 verified initially sane on %s.\n", XDisplayName(NULL));
106 #endif
107 return 0;
110 #if defined(LEAK_SANITIZER)
111 // XOpenDisplay leaks memory if it takes more than one try to connect. This
112 // causes LSan bots to fail. We don't care about memory leaks in xdisplaycheck
113 // anyway, so just disable LSan completely.
114 // This function isn't referenced from the executable itself. Make sure it isn't
115 // stripped by the linker.
116 __attribute__((used))
117 __attribute__((visibility("default")))
118 extern "C" int __lsan_is_turned_off() { return 1; }
119 #endif