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Made SCSI logger permanent and controllable via API call

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This commit is contained in:
Thomas Schmitt
2009-11-12 17:54:06 +00:00
parent ce3d4dbed3
commit 0f37170759
5 changed files with 93 additions and 26 deletions
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63
libburn/sg-linux.c
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@ -1,5 +1,11 @@
/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
/* <<< ts A91112 : experiments to get better speed with USB
#define Libburn_sgio_as_growisofS 1
*/
/*
This is the main operating system dependent SCSI part of libburn. It implements
@ -196,17 +202,25 @@ static void enumerate_common(char *fname, int bus_no, int host_no,
/* ts A60813 : storage objects are in libburn/init.c
wether to use O_EXCL with open(2) of devices
wether to use fcntl(,F_SETLK,) after open(2) of devices
whether to use O_EXCL with open(2) of devices
whether to use fcntl(,F_SETLK,) after open(2) of devices
what device family to use : 0=default, 1=sr, 2=scd, (3=st), 4=sg
wether to use O_NOBLOCK with open(2) on devices
wether to take O_EXCL rejection as fatal error */
whether to use O_NOBLOCK with open(2) on devices
whether to take O_EXCL rejection as fatal error
*/
extern int burn_sg_open_o_excl;
extern int burn_sg_fcntl_f_setlk;
extern int burn_sg_use_family;
extern int burn_sg_open_o_nonblock;
extern int burn_sg_open_abort_busy;
/* ts A91111 :
whether to log SCSI commands:
bit0= log in /tmp/libburn_sg_command_log
bit1= log to stderr
bit2= flush every line
*/
extern int burn_sg_log_scsi;
/* ts A60821
debug: for tracing calls which might use open drive fds
@ -1642,6 +1656,7 @@ int sg_release(struct burn_drive *d)
}
/* <<< ts A91111: on its way out */
/** ts A70518:
Debugging log facility. Controlled by existence of macros:
Libburn_log_sg_commandS enables logging to file
@ -1650,10 +1665,11 @@ int sg_release(struct burn_drive *d)
Libburn_log_sg_command_stderR enables additional log to stderr
*/
/*
ts A91111: now enabled by default and controlled burn_sg_log_scsi
*/
#define Libburn_log_sg_commandS 1
#define Libburn_fflush_log_sg_commandS 1
#define Libburn_log_sg_command_stderR 1
*/
#ifdef Libburn_log_sg_commandS
@ -1661,16 +1677,16 @@ int sg_release(struct burn_drive *d)
/** Logs command (before execution) */
static int sg_log_cmd(struct command *c, FILE *fp, int flag)
{
if (fp != NULL) {
if (fp != NULL && (fp == stderr || (burn_sg_log_scsi & 1))) {
scsi_show_cmd_text(c, fp, 0);
#ifdef Libburn_fflush_log_sg_commandS
fflush(fp);
if (burn_sg_log_scsi & 4)
fflush(fp);
#endif
}
#ifdef Libburn_log_sg_command_stderR
if (fp == stderr)
if (fp == stderr || !(burn_sg_log_scsi & 2))
return 1;
sg_log_cmd(c, stderr, flag);
#endif
@ -1683,7 +1699,7 @@ static int sg_log_err(struct command *c, FILE *fp,
sg_io_hdr_t *s,
int flag)
{
if(fp!=NULL) {
if(fp != NULL && (fp == stderr || (burn_sg_log_scsi & 1))) {
if(flag & 1) {
fprintf(fp,
"+++ key=%X asc=%2.2Xh ascq=%2.2Xh (%6d ms)\n",
@ -1693,11 +1709,12 @@ static int sg_log_err(struct command *c, FILE *fp,
fprintf(fp,"%6d ms\n", s->duration);
}
#ifdef Libburn_fflush_log_sg_commandS
fflush(fp);
if (burn_sg_log_scsi & 4)
fflush(fp);
#endif
}
#ifdef Libburn_log_sg_command_stderR
if (fp == stderr)
if (fp == stderr || !(burn_sg_log_scsi & 2))
return 1;
sg_log_err(c, stderr, s, flag);
#endif
@ -1738,11 +1755,15 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
#ifdef Libburn_log_sg_commandS
/* ts A61030 */
if(fp==NULL) {
fp= fopen("/tmp/libburn_sg_command_log","a");
fprintf(fp,"\n-----------------------------------------\n");
if (burn_sg_log_scsi & 1) {
if (fp == NULL) {
fp= fopen("/tmp/libburn_sg_command_log", "a");
fprintf(fp,
"\n-----------------------------------------\n");
}
}
sg_log_cmd(c,fp,0);
if (burn_sg_log_scsi & 3)
sg_log_cmd(c,fp,0);
#endif /* Libburn_log_sg_commandS */
@ -1757,6 +1778,13 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
s.interface_id = 'S';
#ifdef Libburn_sgio_as_growisofS
/* ??? ts A91112 : does this speed up USB ? (from growisofs)
--- did not help
*/
s.flags = SG_FLAG_DIRECT_IO;
#endif /* Libburn_sgio_as_growisofS */
if (c->dir == TO_DRIVE)
s.dxfer_direction = SG_DXFER_TO_DEV;
else if (c->dir == FROM_DRIVE)
@ -1879,7 +1907,8 @@ ex:;
}
#ifdef Libburn_log_sg_commandS
sg_log_err(c, fp, &s, c->error != 0);
if (burn_sg_log_scsi & 3)
sg_log_err(c, fp, &s, c->error != 0);
#endif /* Libburn_log_sg_commandS */
return 1;