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refactor: reduce some globals #27406

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Justin M. Keyes 2024-02-10 05:00:17 -08:00 committed by GitHub
parent 607606e3bb
commit e15dfb5f79
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2 changed files with 15 additions and 18 deletions
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4
src/nvim/globals.h
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@ -978,9 +978,7 @@ EXTERN const char bot_top_msg[] INIT(= N_("search hit BOTTOM, continuing at TOP"
EXTERN const char line_msg[] INIT(= N_(" line "));
EXTERN FILE *time_fd INIT(= NULL); // where to write startup timing
#define STARTUP_TIME_BUF_SIZE 8192
EXTERN char *startuptime_buf INIT(= NULL); // --startuptime buffer
EXTERN FILE *time_fd INIT(= NULL); // Where to write --startuptime report.
// Some compilers warn for not using a return value, but in some situations we
// can't do anything useful with the value. Assign to this variable to avoid

29
src/nvim/profile.c
View File

@ -45,6 +45,7 @@ typedef struct {
#define PRL_ITEM(si, idx) (((sn_prl_T *)(si)->sn_prl_ga.ga_data)[(idx)])
static proftime_T prof_wait_time;
static char *startuptime_buf = NULL; // --startuptime buffer
/// Gets the current time.
///
@ -945,29 +946,27 @@ void time_msg(const char *mesg, const proftime_T *start)
fprintf(time_fd, ": %s\n", mesg);
}
/// Initializes the time time_fd stream used to write startup times
/// Initializes the `time_fd` stream for the --startuptime report.
///
/// @param startup_time_file the startuptime report file path
/// @param process_name the name of the current process to write in the report.
void time_init(const char *startup_time_file, const char *process_name)
/// @param fname startuptime report file path
/// @param process_name name of the current Nvim process to write in the report.
void time_init(const char *fname, const char *process_name)
{
time_fd = fopen(startup_time_file, "a");
const size_t bufsize = 8192; // Big enough for the entire --startuptime report.
time_fd = fopen(fname, "a");
if (time_fd == NULL) {
semsg(_(e_notopen), startup_time_file);
semsg(_(e_notopen), fname);
return;
}
startuptime_buf = xmalloc(sizeof(char) * (STARTUP_TIME_BUF_SIZE + 1));
// The startuptime file is (potentially) written by multiple nvim processes concurrently. So
// startuptime info is buffered, and flushed to disk only after startup completed. To achieve that
// we set a buffer big enough to store all startup times. The `_IOFBF` mode ensures the buffer is
// not auto-flushed ("controlled buffering").
// The times are flushed to disk manually when "time_finish" is called.
int r = setvbuf(time_fd, startuptime_buf, _IOFBF, STARTUP_TIME_BUF_SIZE + 1);
startuptime_buf = xmalloc(sizeof(char) * (bufsize + 1));
// The startuptime file is (potentially) written by multiple Nvim processes concurrently. So each
// report is buffered, and flushed to disk (`time_finish`) once after startup. `_IOFBF` mode
// ensures the buffer is not auto-flushed ("controlled buffering").
int r = setvbuf(time_fd, startuptime_buf, _IOFBF, bufsize + 1);
if (r != 0) {
xfree(startuptime_buf);
XFREE_CLEAR(startuptime_buf);
fclose(time_fd);
time_fd = NULL;
// Might as well ELOG also I guess.
ELOG("time_init: setvbuf failed: %d %s", r, uv_err_name(r));
semsg("time_init: setvbuf failed: %d %s", r, uv_err_name(r));
return;