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add -I interval option

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-I INTERVAL option inserts sleep for interval (seconds) between
SSH connection attempts (issue #7).
This commit is contained in:
Ryo Nakamura
2023-11-25 15:17:33 +09:00
parent c292ce2b29
commit 0cf3acee20
7 changed files with 89 additions and 32 deletions
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13
src/main.c
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@@ -18,7 +18,8 @@
void usage(bool print_help) {
printf("mscp " MSCP_BUILD_VERSION ": copy files over multiple ssh connections\n"
"\n"
"Usage: mscp [vqDHdNh] [-n nr_conns] [-m coremask] [-u max_startups]\n"
"Usage: mscp [vqDHdNh] [-n nr_conns] [-m coremask]\n"
" [-u max_startups] [-I interval]\n"
" [-s min_chunk_sz] [-S max_chunk_sz] [-a nr_ahead] [-b buf_sz]\n"
" [-l login_name] [-p port] [-F ssh_config] [-i identity_file]\n"
" [-c cipher_spec] [-M hmac_spec] [-C compress] [-g congestion]\n"
@@ -31,11 +32,12 @@ void usage(bool print_help) {
printf(" -n NR_CONNECTIONS number of connections "
"(default: floor(log(cores)*2)+1)\n"
" -m COREMASK hex value to specify cores where threads pinned\n"
" -u MAX_STARTUPS number of concurrent outgoing connections "
" -u MAX_STARTUPS number of concurrent SSH connection attempts "
"(default: 8)\n"
" -I INTERVAL interval between SSH connection attempts (default: 0)\n"
"\n"
" -s MIN_CHUNK_SIZE min chunk size (default: 64MB)\n"
" -S MAX_CHUNK_SIZE max chunk size (default: filesize/nr_conn)\n"
"\n"
" -a NR_AHEAD number of inflight SFTP commands (default: 32)\n"
" -b BUF_SZ buffer size for i/o and transfer\n"
"\n"
@@ -253,7 +255,7 @@ int main(int argc, char **argv)
o.severity = MSCP_SEVERITY_WARN;
while ((ch = getopt(argc, argv,
"n:m:u:s:S:a:b:vqDrl:p:i:F:c:M:C:g:HdNh")) != -1) {
"n:m:u:I:s:S:a:b:vqDrl:p:i:F:c:M:C:g:HdNh")) != -1) {
switch (ch) {
case 'n':
o.nr_threads = atoi(optarg);
@@ -269,6 +271,9 @@ int main(int argc, char **argv)
case 'u':
o.max_startups = atoi(optarg);
break;
case 'I':
o.interval = atoi(optarg);
break;
case 's':
o.min_chunk_sz = atoi(optarg);
break;