Added SYS_copy_file_range

src/posix/handlers.hpp

@@ -8,6 +8,7 @@
 #include "handlers/access.hpp"
 #include "handlers/chdir.hpp"
 #include "handlers/close.hpp"
+#include "handlers/copy_file_range.hpp"
 #include "handlers/dup.hpp"
 #include "handlers/execve.hpp"
 #include "handlers/exit.hpp"

src/posix/handlers/copy_file_range.hpp

@@ -0,0 +1,21 @@
+#ifndef CAPIO_COPY_FILE_RANGE_HPP
+#define CAPIO_COPY_FILE_RANGE_HPP
+int copy_file_range_handler(long arg0, long arg1, long arg2, long arg3, long arg4, long arg5,
+                            long *result) {
+    auto tid     = static_cast<pid_t>(syscall_no_intercept(SYS_gettid));
+    auto fd_in   = static_cast<int>(arg0);
+    auto fd_out  = static_cast<int>(arg2);
+    auto off_in  = static_cast<capio_off64_t>(arg1);
+    auto off_out = static_cast<capio_off64_t>(arg3);
+    START_LOG(tid, "call()");
+
+    // TODO: support in memory read  / write
+    if (exists_capio_fd(fd_in)) {
+        auto path = get_capio_fd_path(fd_in);
+        LOG("Handling copy for source file: %s", path.c_str());
+        read_request_cache_fs->read_request(path, off_in, tid, fd_in);
+    }
+
+    return CAPIO_POSIX_SYSCALL_SKIP;
+}
+#endif // CAPIO_COPY_FILE_RANGE_HPP

src/posix/libcapio_posix.cpp

@@ -187,6 +187,9 @@ static constexpr long CAPIO_NR_SYSCALLS = 1 + std::max({
 #endif
 #ifdef SYS_writev
                                                   SYS_writev,
+#endif
+#ifdef SYS_copy_file_range
+                                                  SYS_copy_file_range,
 #endif
                                               });
 
@@ -356,6 +359,9 @@ static constexpr std::array<CPHandler_t, CAPIO_NR_SYSCALLS> build_syscall_table(
 #ifdef SYS_writev
     _syscallTable[SYS_writev] = writev_handler;
 #endif
+#ifdef SYS_copy_file_range
+    _syscallTable[SYS_copy_file_range] = copy_file_range_handler;
+#endif
 
     return _syscallTable;
 }