fixing windows build issue

Author: mkatanbaf

include/tvm/runtime/c_runtime_api.h

@@ -76,6 +76,17 @@ extern "C" {
 #endif
 #include <stddef.h>
 #include <stdint.h>
+#include <stdio.h>
+
+#if defined(_MSC_VER)
+#if defined(_WIN64)
+typedef int64_t tvm_ssize_t;
+#else
+typedef int32_t tvm_ssize_t;
+#endif
+#else
+typedef ssize_t tvm_ssize_t;
+#endif
 
 /*! \brief type of array index. */
 typedef int64_t tvm_index_t;

src/runtime/minrpc/minrpc_server.h

@@ -150,7 +150,7 @@ class MinRPCReturns : public MinRPCReturnInterface {
     const uint8_t* buf = static_cast<const uint8_t*>(data);
     size_t ndone = 0;
     while (ndone < size) {
-      ssize_t ret = io_->PosixWrite(buf, size - ndone);
+      tvm_ssize_t ret = io_->PosixWrite(buf, size - ndone);
       if (ret <= 0) {
         this->ThrowError(RPCServerStatus::kWriteError);
       }
@@ -526,7 +526,7 @@ class MinRPCExecute : public MinRPCExecInterface {
     uint8_t* buf = static_cast<uint8_t*>(data);
     size_t ndone = 0;
     while (ndone < size) {
-      ssize_t ret = io_->PosixRead(buf, size - ndone);
+      tvm_ssize_t ret = io_->PosixRead(buf, size - ndone);
       if (ret <= 0) return ret;
       ndone += ret;
       buf += ret;
@@ -757,7 +757,7 @@ class MinRPCServer {
     uint8_t* buf = static_cast<uint8_t*>(data);
     size_t ndone = 0;
     while (ndone < size) {
-      ssize_t ret = io_->PosixRead(buf, size - ndone);
+      tvm_ssize_t ret = io_->PosixRead(buf, size - ndone);
       if (ret == 0) {
         if (allow_clean_shutdown_) {
           Shutdown();

src/runtime/minrpc/minrpc_server_logging.h

@@ -140,7 +140,7 @@ class MinRPCSniffer {
     uint8_t* buf = reinterpret_cast<uint8_t*>(data);
     size_t ndone = 0;
     while (ndone < size) {
-      ssize_t ret = io_->PosixRead(buf, size - ndone);
+      tvm_ssize_t ret = io_->PosixRead(buf, size - ndone);
       if (ret <= 0) {
         this->ThrowError(RPCServerStatus::kReadError);
         return false;

src/runtime/rpc/rpc_channel_logger.h

@@ -24,6 +24,8 @@
 #ifndef TVM_RUNTIME_RPC_RPC_CHANNEL_LOGGER_H_
 #define TVM_RUNTIME_RPC_RPC_CHANNEL_LOGGER_H_
 
+#include <tvm/runtime/c_runtime_api.h>
+
 #include <memory>
 #include <utility>
 
@@ -96,11 +98,11 @@ class SnifferIOHandler {
 
   void MessageStart(size_t message_size_bytes) {}
 
-  ssize_t PosixWrite(const uint8_t* buf, size_t buf_size_bytes) { return 0; }
+  tvm_ssize_t PosixWrite(const uint8_t* buf, size_t buf_size_bytes) { return 0; }
 
   void MessageDone() {}
 
-  ssize_t PosixRead(uint8_t* buf, size_t buf_size_bytes) {
+  tvm_ssize_t PosixRead(uint8_t* buf, size_t buf_size_bytes) {
     return receive_buffer_->Read(buf, buf_size_bytes);
   }