fix(logging): try harder to resolve Nvim "name" #19016

Problem:
If startup finishes (starting=false) before the logger ever happens to
see a v:servername, we're stuck with the "?.<PID>" fallback name
forever.

Solution:
Drop the `starting` condition. Discard the "?.<PID>" fallback after
using it for the current log message. So logging will always check
v:servername next time.
This commit is contained in:
Justin M. Keyes 2022-06-18 18:30:54 +02:00 committed by GitHub
parent 1ad6423f02
commit 9c0f2253a5
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 9 additions and 4 deletions

View File

@ -8199,7 +8199,7 @@ varnumber_T get_vim_var_nr(int idx) FUNC_ATTR_PURE
/// Get string v: variable value. Uses a static buffer, can only be used once.
/// If the String variable has never been set, return an empty string.
/// Never returns NULL;
/// Never returns NULL.
char *get_vim_var_str(int idx)
FUNC_ATTR_PURE FUNC_ATTR_NONNULL_RET
{

View File

@ -305,15 +305,15 @@ static bool v_do_log_to_file(FILE *log_file, int log_level, const char *context,
// Get a name for this Nvim instance.
// TODO(justinmk): expose this as v:name ?
if (starting || name[0] == '\0') {
if (name[0] == '\0') {
// Parent servername.
const char *parent = path_tail(os_getenv(ENV_NVIM));
// Servername. Empty until starting=false.
const char *serv = path_tail(get_vim_var_str(VV_SEND_SERVER));
if (parent && parent[0] != NUL) {
snprintf(name, sizeof(name), "%s/c", parent); // "/c" indicates child.
} else if (serv && serv[0] != NUL) {
snprintf(name, sizeof(name), "%s", serv ? serv : "");
} else if (serv[0] != NUL) {
snprintf(name, sizeof(name), "%s", serv);
} else {
int64_t pid = os_get_pid();
snprintf(name, sizeof(name), "?.%-5" PRId64, pid);
@ -329,6 +329,11 @@ static bool v_do_log_to_file(FILE *log_file, int log_level, const char *context,
log_levels[log_level], date_time, millis, name,
(context == NULL ? "" : context),
func_name, line_num);
if (name[0] == '?') {
// No v:servername yet. Clear `name` so that the next log can try again.
name[0] = '\0';
}
if (rv < 0) {
return false;
}