this repo has no description
Some basic impl for Mach thread API
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src/libSystem/CMakeLists.txt
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src/libSystem/CMakeLists.txt
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src/libSystem/kernel-mach/host.cpp
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src/libSystem/kernel-mach/host.cpp
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src/libSystem/kernel-mach/thread.cpp
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src/libSystem/kernel-mach/thread.cpp
···
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#include "thread.h"
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#include <fstream>
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#include <sstream>
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#include <unistd.h>
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#include <mach/kern_return.h>
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#include "../libc/pthread.h"
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kern_return_t thread_info(thread_act_t target_act, thread_flavor_t flavor, void* infoOut, mach_msg_type_number_t* count)
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{
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if (!infoOut || !count)
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return KERN_INVALID_ARGUMENT;
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switch (flavor)
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{
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case THREAD_IDENTIFIER_INFO:
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{
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std::stringstream ss;
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std::ifstream fs;
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std::string procpath;
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thread_identifier_info* info = static_cast<thread_identifier_info*>(infoOut);
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if (*count < THREAD_IDENTIFIER_INFO_COUNT)
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return KERN_NO_SPACE;
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*count = THREAD_IDENTIFIER_INFO_COUNT;
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//info->thread_handle = Darling::tidForPthread(pthread_t(target_act));
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info->thread_handle = target_act;
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info->dispatch_qaddr = 0;
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info->thread_id = info->thread_handle;
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ss << "/proc/" << getpid() << "/task/" << info->thread_handle << "/stat";
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procpath = ss.str();
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fs.open(procpath.c_str(), std::ios_base::in);
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if (fs.is_open())
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{
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uint64_t dummy;
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for (int i = 0; i < 22; i++)
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fs >> dummy;
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info->thread_id = info->thread_handle << 32;
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info->thread_id |= dummy & 0xffffffff; // OR thread start time into lower 32 bits
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}
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return KERN_SUCCESS;
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}
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case THREAD_BASIC_INFO:
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return KERN_FAILURE;
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default:
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return KERN_INVALID_ARGUMENT;
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}
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}
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+32
src/libSystem/kernel-mach/thread.h
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src/libSystem/kernel-mach/thread.h
···
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#ifndef THREAD_H
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#define THREAD_H
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#include <stdint.h>
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#include "task.h"
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#define THREAD_BASIC_INFO 3
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#define THREAD_IDENTIFIER_INFO 4
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typedef natural_t thread_act_t;
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typedef natural_t thread_flavor_t;
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struct thread_identifier_info
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{
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uint64_t thread_id;
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uint64_t thread_handle;
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uint64_t dispatch_qaddr;
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};
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#define THREAD_IDENTIFIER_INFO_COUNT (sizeof(struct thread_identifier_info) / sizeof(natural_t))
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#ifdef __cplusplus
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extern "C" {
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#endif
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kern_return_t thread_info(thread_act_t target_act, thread_flavor_t flavor, void* infoOut, mach_msg_type_number_t* count);
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#ifdef __cplusplus
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}
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#endif
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#endif
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