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Implement batch AIO completion polling and deletion with per-request results

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This commit is contained in:
nmzik
2026-10-03 16:04:40 +04:00
parent 5766b241c3
commit a0858abe35
2 changed files with 135 additions and 8 deletions
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src/libs/libKernel.cpp
+54 -8
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@@ -2828,6 +2828,7 @@ constexpr int32_t KERNEL_AIO_STATE_SUBMITTED = 1;
constexpr int32_t KERNEL_AIO_STATE_PROCESSING = 2;
constexpr int32_t KERNEL_AIO_STATE_COMPLETED = 3;
constexpr int32_t KERNEL_AIO_STATE_ABORTED = 4;
constexpr int32_t KERNEL_AIO_STATE_NOTIFIED = 0x10000;
constexpr int32_t KERNEL_AIO_MAX_QUEUE = 512;
constexpr int32_t KERNEL_AIO_MAX_REQUESTS = 128;
@@ -2940,10 +2941,31 @@ int KYTY_SYSV_ABI KernelAioPollRequest(int32_t id, int32_t* state) {
}
if (!kernel_aio_is_valid_id(id)) {
return LibKernel::KERNEL_ERROR_EINVAL;
*state = LibKernel::KERNEL_ERROR_ESRCH;
return OK;
}
*state = g_kernel_aio_state[id].load(std::memory_order_acquire);
auto current = g_kernel_aio_state[id].load(std::memory_order_acquire);
while (current == KERNEL_AIO_STATE_COMPLETED || current == KERNEL_AIO_STATE_ABORTED) {
if (g_kernel_aio_state[id].compare_exchange_weak(current, current | KERNEL_AIO_STATE_NOTIFIED,
std::memory_order_acq_rel)) {
break;
}
}
*state = current == 0 ? LibKernel::KERNEL_ERROR_ESRCH : current;
return OK;
}
int KYTY_SYSV_ABI KernelAioPollRequests(int32_t* ids, int32_t num, int32_t* states) {
if (ids == nullptr || states == nullptr) {
return LibKernel::KERNEL_ERROR_EFAULT;
}
if (num <= 0 || num > KERNEL_AIO_MAX_REQUESTS) {
return LibKernel::KERNEL_ERROR_EINVAL;
}
for (int32_t i = 0; i < num; i++) {
KernelAioPollRequest(ids[i], &states[i]);
}
return OK;
}
@@ -2955,7 +2977,7 @@ int KYTY_SYSV_ABI KernelAioWaitRequest(int32_t id, int32_t* state, uint32_t* use
}
if (!kernel_aio_is_valid_id(id)) {
return LibKernel::KERNEL_ERROR_EINVAL;
return KernelAioPollRequest(id, state);
}
uint32_t waited = 0;
@@ -2971,8 +2993,7 @@ int KYTY_SYSV_ABI KernelAioWaitRequest(int32_t id, int32_t* state, uint32_t* use
current = g_kernel_aio_state[id].load(std::memory_order_acquire);
}
*state = current;
return OK;
return KernelAioPollRequest(id, state);
}
int KYTY_SYSV_ABI KernelAioDeleteRequest(int32_t id, int32_t* ret) {
@@ -2983,12 +3004,35 @@ int KYTY_SYSV_ABI KernelAioDeleteRequest(int32_t id, int32_t* ret) {
}
if (!kernel_aio_is_valid_id(id)) {
return LibKernel::KERNEL_ERROR_EINVAL;
*ret = LibKernel::KERNEL_ERROR_ESRCH;
return OK;
}
g_kernel_aio_state[id].store(KERNEL_AIO_STATE_ABORTED, std::memory_order_release);
*ret = OK;
auto current = g_kernel_aio_state[id].load(std::memory_order_acquire);
for (;;) {
const auto state = current & ~KERNEL_AIO_STATE_NOTIFIED;
if (state != KERNEL_AIO_STATE_COMPLETED && state != KERNEL_AIO_STATE_ABORTED) {
*ret = current == 0 ? LibKernel::KERNEL_ERROR_ESRCH : LibKernel::KERNEL_ERROR_EBUSY;
break;
}
if (g_kernel_aio_state[id].compare_exchange_weak(current, 0, std::memory_order_acq_rel)) {
*ret = OK;
break;
}
}
return OK;
}
int KYTY_SYSV_ABI KernelAioDeleteRequests(int32_t* ids, int32_t num, int32_t* rets) {
if (ids == nullptr || rets == nullptr) {
return LibKernel::KERNEL_ERROR_EFAULT;
}
if (num <= 0 || num > KERNEL_AIO_MAX_REQUESTS) {
return LibKernel::KERNEL_ERROR_EINVAL;
}
for (int32_t i = 0; i < num; i++) {
KernelAioDeleteRequest(ids[i], &rets[i]);
}
return OK;
}
@@ -3326,8 +3370,10 @@ LIB_DEFINE(InitLibKernel_1) {
LIB_FUNC("kbw4UHHSYy0", LibKernel::pthread_cxa_finalize);
LIB_FUNC("lLMT9vJAck0", LibKernel::clock_gettime);
LIB_FUNC("5TgME6AYty4", KernelAioDeleteRequest);
LIB_FUNC("Ft3EtsZzAoY", KernelAioDeleteRequests);
LIB_FUNC("HgX7+AORI58", KernelAioSubmitReadCommands);
LIB_FUNC("2pOuoWoCxdk", KernelAioPollRequest);
LIB_FUNC("o7O4z3jwKzo", KernelAioPollRequests);
LIB_FUNC("KOF-oJbQVvc", KernelAioWaitRequest);
LIB_FUNC("XQ8C8y+de+E", KernelAioSubmitWriteCommands);
LIB_FUNC("nu4a0-arQis", KernelAioInitializeParam);