mirror of
https://github.com/OpenEmu/OpenEmuKit.git
synced 2025-11-01 11:08:14 +00:00
Stuart Carnie
103 lines
3.3 KiB
Objective-C
103 lines
3.3 KiB
Objective-C
// Copyright (c) 2019, OpenEmu Team
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the OpenEmu Team nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY OpenEmu Team ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL OpenEmu Team BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#import "OEXPCDebugSupport.h"
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#import <AppKit/AppKit.h>
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#import <assert.h>
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#import <stdbool.h>
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#import <sys/types.h>
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#import <unistd.h>
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#import <sys/sysctl.h>
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#import <stdatomic.h>
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@implementation OEXPCCDebugSupport
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+ (BOOL)debuggerAttached
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{
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int junk;
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int mib[4];
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struct kinfo_proc info;
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size_t size;
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// Initialize the flags so that, if sysctl fails for some bizarre
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// reason, we get a predictable result.
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info.kp_proc.p_flag = 0;
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// Initialize mib, which tells sysctl the info we want, in this case
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// we're looking for information about a specific process ID.
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PID;
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mib[3] = getpid();
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// Call sysctl.
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size = sizeof(info);
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junk = sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, NULL, 0);
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assert(junk == 0);
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// We're being debugged if the P_TRACED flag is set.
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return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
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}
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+ (BOOL)OE_waitForDebuggerUntilTime:(dispatch_time_t)t
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{
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dispatch_queue_global_t queue = dispatch_get_global_queue(QOS_CLASS_UTILITY, 0);
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__block dispatch_semaphore_t sem = dispatch_semaphore_create(0);
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__block atomic_bool done;
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atomic_init(&done, false);
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dispatch_async(queue, ^{
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while (!self.debuggerAttached && atomic_load(&done) == false)
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{
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usleep(100);
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}
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dispatch_semaphore_signal(sem);
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});
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BOOL ok = dispatch_semaphore_wait(sem, t) == 0;
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atomic_store(&done, true);
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return ok;
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}
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+ (BOOL)waitForDebuggerUntil:(NSUInteger)nanoseconds
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{
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return [self OE_waitForDebuggerUntilTime:dispatch_time(DISPATCH_TIME_NOW, nanoseconds)];
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}
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+ (void)waitForDebugger
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{
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[self OE_waitForDebuggerUntilTime:DISPATCH_TIME_FOREVER];
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}
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@end
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