106 lines
3.0 KiB
V
106 lines
3.0 KiB
V
module gen
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import v.pref
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import v.util
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fn (mut g Gen) generate_hotcode_reloading_declarations() {
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if g.pref.os == .windows {
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if g.pref.is_livemain {
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g.hotcode_definitions.writeln('HANDLE live_fn_mutex = 0;')
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}
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if g.pref.is_liveshared {
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g.hotcode_definitions.writeln('HANDLE live_fn_mutex;')
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}
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g.hotcode_definitions.writeln('
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void pthread_mutex_lock(HANDLE *m) {
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WaitForSingleObject(*m, INFINITE);
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}
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void pthread_mutex_unlock(HANDLE *m) {
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ReleaseMutex(*m);
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}
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')
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} else {
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if g.pref.is_livemain {
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g.hotcode_definitions.writeln('pthread_mutex_t live_fn_mutex = PTHREAD_MUTEX_INITIALIZER;')
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}
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if g.pref.is_liveshared {
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g.hotcode_definitions.writeln('pthread_mutex_t live_fn_mutex;')
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}
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}
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}
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fn (mut g Gen) generate_hotcode_reloader_code() {
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if g.pref.is_liveshared {
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g.hotcode_definitions.writeln('')
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return
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}
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// Hot code reloading
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if g.pref.is_livemain {
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mut phd := ''
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mut load_code := []string{}
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if g.pref.os != .windows {
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for so_fn in g.hotcode_fn_names {
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load_code << 'impl_live_$so_fn = dlsym(live_lib, "impl_live_$so_fn");'
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}
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phd = posix_hotcode_definitions_1
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} else {
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for so_fn in g.hotcode_fn_names {
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load_code <<
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'impl_live_$so_fn = (void *)GetProcAddress(live_lib, "impl_live_$so_fn"); '
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}
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phd = windows_hotcode_definitions_1
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}
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g.hotcode_definitions.writeln(phd.replace('@LOAD_FNS@', load_code.join('\n')))
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}
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}
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const (
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posix_hotcode_definitions_1 = '
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void v_bind_live_symbols(void* live_lib){
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@LOAD_FNS@
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}
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'
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windows_hotcode_definitions_1 = '
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void v_bind_live_symbols(void* live_lib){
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@LOAD_FNS@
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}
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'
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)
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fn (mut g Gen) generate_hotcode_reloading_main_caller() {
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if !g.pref.is_livemain {
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return
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}
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g.writeln('')
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// We are in live code reload mode, so start the .so loader in the background
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g.writeln('\t// live code initialization section:')
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g.writeln('\t{')
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g.writeln('\t\t// initialization of live function pointers')
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for fname in g.hotcode_fn_names {
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g.writeln('\t\timpl_live_$fname = 0;')
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}
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vexe := util.cescaped_path(pref.vexe_path())
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file := util.cescaped_path(g.pref.path)
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msvc := if g.pref.ccompiler == 'msvc' { '-cc msvc' } else { '' }
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so_debug_flag := if g.pref.is_debug { '-cg' } else { '' }
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vopts := '$msvc $so_debug_flag -sharedlive -shared'
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//
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g.writeln('\t\t// start background reloading thread')
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if g.pref.os == .windows {
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g.writeln('\t\tlive_fn_mutex = CreateMutexA(0, 0, 0);')
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}
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g.writeln('\t\tlive__LiveReloadInfo* live_info = live__executable__new_live_reload_info(')
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g.writeln('\t\t\t\t\t tos2("$file"),')
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g.writeln('\t\t\t\t\t tos2("$vexe"),')
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g.writeln('\t\t\t\t\t tos2("$vopts"),')
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g.writeln('\t\t\t\t\t &live_fn_mutex,')
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g.writeln('\t\t\t\t\t v_bind_live_symbols')
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g.writeln('\t\t);')
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// g_live_info gives access to the LiveReloadInfo methods,
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// to the custom user code, through calling v_live_info()
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g.writeln('\t\t g_live_info = (void*)live_info;')
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g.writeln('\t\tlive__executable__start_reloader(live_info);')
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g.writeln('\t}\t// end of live code initialization section')
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g.writeln('')
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}
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