timestamp_t: a new data type for timestamps

Git's source code assumes that unsigned long is at least as precise as
time_t. Which is incorrect, and causes a lot of problems, in particular
where unsigned long is only 32-bit (notably on Windows, even in 64-bit
versions).

So let's just use a more appropriate data type instead. In preparation
for this, we introduce the new `timestamp_t` data type.

By necessity, this is a very, very large patch, as it has to replace all
timestamps' data type in one go.

As we will use a data type that is not necessarily identical to `time_t`,
we need to be very careful to use `time_t` whenever we interact with the
system functions, and `timestamp_t` everywhere else.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
2017-04-26 21:29:31 +02:00
committed by Junio C Hamano
parent cb71f8bdb5
commit dddbad728c
49 changed files with 170 additions and 158 deletions

View File

@ -90,7 +90,7 @@ static void hdr_int(struct strbuf *hdr, const char *name, uintmax_t value)
strbuf_addf(hdr, "%s: %" PRIuMAX "\r\n", name, value);
}
static void hdr_date(struct strbuf *hdr, const char *name, unsigned long when)
static void hdr_date(struct strbuf *hdr, const char *name, timestamp_t when)
{
const char *value = show_date(when, 0, DATE_MODE(RFC2822));
hdr_str(hdr, name, value);
@ -105,7 +105,7 @@ static void hdr_nocache(struct strbuf *hdr)
static void hdr_cache_forever(struct strbuf *hdr)
{
unsigned long now = time(NULL);
timestamp_t now = time(NULL);
hdr_date(hdr, "Date", now);
hdr_date(hdr, "Expires", now + 31536000);
hdr_str(hdr, "Cache-Control", "public, max-age=31536000");