mirror of https://github.com/reactos/reactos.git
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/*
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* COPYRIGHT: GPL, see COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: drivers/base/kddll/utils.c
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* PURPOSE: Misc helper functions.
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*/
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#include "kdgdb.h"
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/*
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* We cannot use PsLookupProcessThreadByCid or alike as we could be running at any IRQL.
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* So we have to loop over the process list.
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*/
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PEPROCESS
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find_process(
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_In_ UINT_PTR Pid)
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{
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HANDLE ProcessId = gdb_pid_to_handle(Pid);
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LIST_ENTRY* ProcessEntry;
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PEPROCESS Process;
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/* Special case for idle process */
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if (ProcessId == NULL)
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return TheIdleProcess;
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for (ProcessEntry = ProcessListHead->Flink;
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ProcessEntry != ProcessListHead;
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ProcessEntry = ProcessEntry->Flink)
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{
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Process = CONTAINING_RECORD(ProcessEntry, EPROCESS, ActiveProcessLinks);
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if (Process->UniqueProcessId == ProcessId)
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return Process;
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}
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return NULL;
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}
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PETHREAD
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find_thread(
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_In_ UINT_PTR Pid,
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_In_ UINT_PTR Tid)
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{
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HANDLE ThreadId = gdb_tid_to_handle(Tid);
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PETHREAD Thread;
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PEPROCESS Process;
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LIST_ENTRY* ThreadEntry;
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#if MONOPROCESS
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LIST_ENTRY* ProcessEntry;
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#endif
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if (
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#if !MONOPROCESS
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(Pid == 0) &&
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#endif
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(Tid == 0))
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{
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/* Zero means any, so use the current one */
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return (PETHREAD)(ULONG_PTR)CurrentStateChange.Thread;
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}
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#if MONOPROCESS
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/* Special case for the idle thread */
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if (Tid == 1)
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return TheIdleThread;
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for (ProcessEntry = ProcessListHead->Flink;
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ProcessEntry != ProcessListHead;
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ProcessEntry = ProcessEntry->Flink)
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{
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Process = CONTAINING_RECORD(ProcessEntry, EPROCESS, ActiveProcessLinks);
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#else
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Process = find_process(Pid);
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/* Special case for the idle thread */
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if ((Process == TheIdleProcess) && (Tid == 1))
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return TheIdleThread;
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if (!Process)
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return NULL;
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#endif
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for (ThreadEntry = Process->ThreadListHead.Flink;
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ThreadEntry != &Process->ThreadListHead;
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ThreadEntry = ThreadEntry->Flink)
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{
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Thread = CONTAINING_RECORD(ThreadEntry, ETHREAD, ThreadListEntry);
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/* For GDB, Tid == 0 means any thread */
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if ((Thread->Cid.UniqueThread == ThreadId) || (Tid == 0))
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{
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return Thread;
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}
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}
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#if MONOPROCESS
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}
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#endif
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return NULL;
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}
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