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kern: implement SvcGetProcessList
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parent
cfddb75398
commit
fe035736ca
3 changed files with 64 additions and 2 deletions
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@ -231,6 +231,9 @@ namespace ams::kern {
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return this->cond_var.Wait(address, cv_key, tag, ns);
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}
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static KProcess *GetProcessFromId(u64 process_id);
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static Result GetProcessList(s32 *out_num_processes, ams::kern::svc::KUserPointer<u64 *> out_process_ids, s32 max_out_count);
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static void Switch(KProcess *cur_process, KProcess *next_process) {
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/* Set the current process pointer. */
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SetCurrentProcess(next_process);
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@ -455,4 +455,52 @@ namespace ams::kern {
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MESOSPHERE_UNIMPLEMENTED();
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}
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KProcess *KProcess::GetProcessFromId(u64 process_id) {
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/* Lock the list. */
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ListAccessor accessor;
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const auto end = accessor.end();
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/* Iterate over the list. */
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for (auto it = accessor.begin(); it != end; ++it) {
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/* Get the process. */
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KProcess *process = static_cast<KProcess *>(std::addressof(*it));
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if (process->GetId() == process_id) {
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if (AMS_LIKELY(process->Open())) {
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return process;
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}
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}
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}
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/* We failed to find the process. */
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return nullptr;
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}
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Result KProcess::GetProcessList(s32 *out_num_processes, ams::kern::svc::KUserPointer<u64 *> out_process_ids, s32 max_out_count) {
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/* Lock the list. */
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ListAccessor accessor;
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const auto end = accessor.end();
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/* Iterate over the list. */
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s32 count = 0;
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for (auto it = accessor.begin(); it != end; ++it) {
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/* If we're within array bounds, write the id. */
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if (count < max_out_count) {
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/* Get the process id. */
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KProcess *process = static_cast<KProcess *>(std::addressof(*it));
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const u64 id = process->GetId();
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/* Copy the id to userland. */
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R_TRY(out_process_ids.CopyArrayElementFrom(std::addressof(id), count));
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}
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/* Increment the count. */
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++count;
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}
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/* We successfully iterated the list. */
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*out_num_processes = count;
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return ResultSuccess();
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}
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}
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@ -52,7 +52,18 @@ namespace ams::kern::svc {
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return ResultSuccess();
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}
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Result GetProcessList(int32_t *out_num_processes, KUserPointer<uint64_t *> out_process_ids, int32_t max_out_count) {
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/* Validate that the out count is valid. */
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R_UNLESS((0 <= max_out_count && max_out_count <= static_cast<int32_t>(std::numeric_limits<int32_t>::max() / sizeof(u64))), svc::ResultOutOfRange());
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/* Validate that the pointer is in range. */
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if (max_out_count > 0) {
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R_UNLESS(GetCurrentProcess().GetPageTable().Contains(KProcessAddress(out_process_ids.GetUnsafePointer()), max_out_count * sizeof(u64)), svc::ResultInvalidCurrentMemory());
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}
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/* Get the process list. */
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return KProcess::GetProcessList(out_num_processes, out_process_ids, max_out_count);
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}
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}
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@ -67,7 +78,7 @@ namespace ams::kern::svc {
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}
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Result GetProcessList64(int32_t *out_num_processes, KUserPointer<uint64_t *> out_process_ids, int32_t max_out_count) {
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MESOSPHERE_PANIC("Stubbed SvcGetProcessList64 was called.");
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return GetProcessList(out_num_processes, out_process_ids, max_out_count);
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}
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Result CreateProcess64(ams::svc::Handle *out_handle, KUserPointer<const ams::svc::lp64::CreateProcessParameter *> parameters, KUserPointer<const uint32_t *> caps, int32_t num_caps) {
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@ -97,7 +108,7 @@ namespace ams::kern::svc {
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}
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Result GetProcessList64From32(int32_t *out_num_processes, KUserPointer<uint64_t *> out_process_ids, int32_t max_out_count) {
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MESOSPHERE_PANIC("Stubbed SvcGetProcessList64From32 was called.");
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return GetProcessList(out_num_processes, out_process_ids, max_out_count);
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}
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Result CreateProcess64From32(ams::svc::Handle *out_handle, KUserPointer<const ams::svc::ilp32::CreateProcessParameter *> parameters, KUserPointer<const uint32_t *> caps, int32_t num_caps) {
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