add .clang-format from Linux kernel and format sources

The exception is that ColumnLimit is 90.

1 files changed, 147 insertions, 154 deletions

diff --git a/src/mscp.c b/src/mscp.c
index 64caade..c3a088c 100644
--- a/src/mscp.c
+++ b/src/mscp.c
@@ -6,7 +6,7 @@
 #include <semaphore.h>
 #include <sys/time.h>
 
-#include <list.h>       
+#include <list.h>
 #include <minmax.h>
 #include <ssh.h>
 #include <path.h>
@@ -20,55 +20,54 @@
 #include <openbsd-compat/openbsd-compat.h>
 
 struct mscp {
-	char			*remote;	/* remote host (and uername) */
-	int			direction;	/* copy direction */
-	struct mscp_opts	*opts;
-	struct mscp_ssh_opts	*ssh_opts;
+	char *remote; /* remote host (and uername) */
+	int direction; /* copy direction */
+	struct mscp_opts *opts;
+	struct mscp_ssh_opts *ssh_opts;
 
-	int			*cores;		/* usable cpu cores by COREMASK */
-	int			nr_cores;	/* length of array of cores */
+	int *cores; /* usable cpu cores by COREMASK */
+	int nr_cores; /* length of array of cores */
 
-	sem_t			*sem;		/* semaphore for concurrent 
+	sem_t *sem; /* semaphore for concurrent 
 						 * connecting ssh sessions */
 
-	sftp_session		first;		/* first sftp session */
+	sftp_session first; /* first sftp session */
 
-	char 			dst_path[PATH_MAX];
-	struct list_head	src_list;
-	struct list_head	path_list;
-	struct chunk_pool	cp;
+	char dst_path[PATH_MAX];
+	struct list_head src_list;
+	struct list_head path_list;
+	struct chunk_pool cp;
 
-	pthread_t		tid_scan;	/* tid for scan thread */
-	int			ret_scan;	/* return code from scan thread */
+	pthread_t tid_scan; /* tid for scan thread */
+	int ret_scan; /* return code from scan thread */
 
-	size_t			total_bytes;	/* total bytes to be transferred */
+	size_t total_bytes; /* total bytes to be transferred */
 
-	struct list_head	thread_list;
-	rwlock			thread_rwlock;
+	struct list_head thread_list;
+	rwlock thread_rwlock;
 };
 
-
 struct mscp_thread {
-	struct list_head	list;	/* mscp->thread_list */
-
-	struct mscp	*m;
-	int		id;
-	sftp_session	sftp;
-	pthread_t	tid;
-	int		cpu;
-	size_t		done;
-	bool		finished;
-	int		ret;
+	struct list_head list; /* mscp->thread_list */
+
+	struct mscp *m;
+	int id;
+	sftp_session sftp;
+	pthread_t tid;
+	int cpu;
+	size_t done;
+	bool finished;
+	int ret;
 };
 
 struct src {
-	struct list_head list;	/* mscp->src_list */
+	struct list_head list; /* mscp->src_list */
 	char *path;
 };
 
-#define DEFAULT_MIN_CHUNK_SZ    (64 << 20)      /* 64MB */
-#define DEFAULT_NR_AHEAD        32
-#define DEFAULT_BUF_SZ          16384
+#define DEFAULT_MIN_CHUNK_SZ (64 << 20) /* 64MB */
+#define DEFAULT_NR_AHEAD 32
+#define DEFAULT_BUF_SZ 16384
 /* XXX: we use 16384 byte buffer pointed by
  * https://api.libssh.org/stable/libssh_tutor_sftp.html. The larget
  * read length from sftp_async_read is 65536 byte. Read sizes larger
@@ -76,75 +75,74 @@ struct src {
  * sftp_async_read returns 0.
  */
 
-#define DEFAULT_MAX_STARTUPS	8
+#define DEFAULT_MAX_STARTUPS 8
 
 #define non_null_string(s) (s[0] != '\0')
 
-
 static int expand_coremask(const char *coremask, int **cores, int *nr_cores)
 {
-        int n, *core_list, core_list_len = 0, nr_usable, nr_all;
-        char c[2] = { 'x', '\0' };
-        const char *_coremask;
-        long v, needle;
-        int ncores = nr_cpus();
+	int n, *core_list, core_list_len = 0, nr_usable, nr_all;
+	char c[2] = { 'x', '\0' };
+	const char *_coremask;
+	long v, needle;
+	int ncores = nr_cpus();
 
-        /*
+	/*
          * This function returns array of usable cores in `cores` and
          * returns the number of usable cores (array length) through
          * nr_cores.
          */
 
-        if (strncmp(coremask, "0x", 2) == 0)
-                _coremask = coremask + 2;
-        else
-                _coremask = coremask;
-
-        core_list = realloc(NULL, sizeof(int) * 64);
-        if (!core_list) {
-                priv_set_errv("failed to realloc: %s", strerrno());
-                return -1;
-        }
-
-        nr_usable = 0;
-        nr_all = 0;
-        for (n = strlen(_coremask) - 1; n >=0; n--) {
-                c[0] = _coremask[n];
-                v = strtol(c, NULL, 16);
-                if (v == LONG_MIN || v == LONG_MAX) {
-                        priv_set_errv("invalid coremask: %s", coremask);
-                        return -1;
-                }
-
-                for (needle = 0x01; needle < 0x10; needle <<= 1) {
-                        nr_all++;
-                        if (nr_all > ncores)
-                                break; /* too long coremask */
-                        if (v & needle) {
-                                nr_usable++;
-                                core_list = realloc(core_list, sizeof(int) * nr_usable);
-                                if (!core_list) {
-                                        priv_set_errv("realloc: %s", strerrno());
-                                        return -1;
-                                }
-                                core_list[nr_usable - 1] = nr_all - 1;
-                        }
-                }
-        }
-
-        if (nr_usable < 1) {
-                priv_set_errv("invalid core mask: %s", coremask);
-                return -1;
-        }
-
-        *cores = core_list;
-        *nr_cores = nr_usable;
-        return 0;
+	if (strncmp(coremask, "0x", 2) == 0)
+		_coremask = coremask + 2;
+	else
+		_coremask = coremask;
+
+	core_list = realloc(NULL, sizeof(int) * 64);
+	if (!core_list) {
+		priv_set_errv("failed to realloc: %s", strerrno());
+		return -1;
+	}
+
+	nr_usable = 0;
+	nr_all = 0;
+	for (n = strlen(_coremask) - 1; n >= 0; n--) {
+		c[0] = _coremask[n];
+		v = strtol(c, NULL, 16);
+		if (v == LONG_MIN || v == LONG_MAX) {
+			priv_set_errv("invalid coremask: %s", coremask);
+			return -1;
+		}
+
+		for (needle = 0x01; needle < 0x10; needle <<= 1) {
+			nr_all++;
+			if (nr_all > ncores)
+				break; /* too long coremask */
+			if (v & needle) {
+				nr_usable++;
+				core_list = realloc(core_list, sizeof(int) * nr_usable);
+				if (!core_list) {
+					priv_set_errv("realloc: %s", strerrno());
+					return -1;
+				}
+				core_list[nr_usable - 1] = nr_all - 1;
+			}
+		}
+	}
+
+	if (nr_usable < 1) {
+		priv_set_errv("invalid core mask: %s", coremask);
+		return -1;
+	}
+
+	*cores = core_list;
+	*nr_cores = nr_usable;
+	return 0;
 }
 
 static int default_nr_threads()
 {
-        return (int)(floor(log(nr_cpus()) * 2) + 1);
+	return (int)(floor(log(nr_cpus()) * 2) + 1);
 }
 
 static int validate_and_set_defaut_params(struct mscp_opts *o)
@@ -167,8 +165,8 @@ static int validate_and_set_defaut_params(struct mscp_opts *o)
 		if (o->min_chunk_sz < getpagesize() ||
 		    o->min_chunk_sz % getpagesize() != 0) {
 			priv_set_errv("min chunk size must be "
-				       "larget than and multiple of page size %d: %lu",
-				       getpagesize(), o->min_chunk_sz);
+				      "larget than and multiple of page size %d: %lu",
+				      getpagesize(), o->min_chunk_sz);
 			return -1;
 		}
 	}
@@ -177,13 +175,13 @@ static int validate_and_set_defaut_params(struct mscp_opts *o)
 		if (o->max_chunk_sz < getpagesize() ||
 		    o->max_chunk_sz % getpagesize() != 0) {
 			priv_set_errv("min chunk size must be larget than and "
-				       "multiple of page size %d: %lu",
-				       getpagesize(), o->max_chunk_sz);
+				      "multiple of page size %d: %lu",
+				      getpagesize(), o->max_chunk_sz);
 		}
 		if (o->min_chunk_sz > o->max_chunk_sz) {
 			priv_set_errv("smaller max chunk size than "
-				       "min chunk size: %lu < %lu",
-				       o->max_chunk_sz, o->min_chunk_sz);
+				      "min chunk size: %lu < %lu",
+				      o->max_chunk_sz, o->min_chunk_sz);
 			return -1;
 		}
 	}
@@ -210,8 +208,8 @@ static int validate_and_set_defaut_params(struct mscp_opts *o)
 	return 0;
 }
 
-struct mscp *mscp_init(const char *remote_host, int direction,
-		       struct mscp_opts *o, struct mscp_ssh_opts *s)
+struct mscp *mscp_init(const char *remote_host, int direction, struct mscp_opts *o,
+		       struct mscp_ssh_opts *s)
 {
 	struct mscp *m;
 	int n;
@@ -221,8 +219,7 @@ struct mscp *mscp_init(const char *remote_host, int direction,
 		return NULL;
 	}
 
-	if (!(direction == MSCP_DIRECTION_L2R ||
-	      direction == MSCP_DIRECTION_R2L)) {
+	if (!(direction == MSCP_DIRECTION_L2R || direction == MSCP_DIRECTION_R2L)) {
 		priv_set_errv("invalid copy direction: %d", direction);
 		return NULL;
 	}
@@ -329,16 +326,16 @@ int mscp_set_dst_path(struct mscp *m, const char *dst_path)
 
 static int get_page_mask(void)
 {
-        long page_sz = sysconf(_SC_PAGESIZE);
-        size_t page_mask = 0;
-        int n;
+	long page_sz = sysconf(_SC_PAGESIZE);
+	size_t page_mask = 0;
+	int n;
 
-        for (n = 0; page_sz > 0; page_sz >>= 1, n++) {
-                page_mask <<= 1;
-                page_mask |= 1;
-        }
+	for (n = 0; page_sz > 0; page_sz >>= 1, n++) {
+		page_mask <<= 1;
+		page_mask |= 1;
+	}
 
-        return page_mask >> 1;
+	return page_mask >> 1;
 }
 
 static void mscp_stop_copy_thread(struct mscp *m)
@@ -376,7 +373,7 @@ void *mscp_scan_thread(void *arg)
 	struct stat ss, ds;
 	glob_t pglob;
 	int n;
-	
+
 	m->ret_scan = 0;
 
 	switch (m->direction) {
@@ -487,8 +484,6 @@ int mscp_scan_join(struct mscp *m)
 	return 0;
 }
 
-
-
 static void *mscp_copy_thread(void *arg);
 
 static struct mscp_thread *mscp_copy_thread_spawn(struct mscp *m, int id)
@@ -497,7 +492,7 @@ static struct mscp_thread *mscp_copy_thread_spawn(struct mscp *m, int id)
 	int ret;
 
 	t = malloc(sizeof(*t));
-	if (!t){
+	if (!t) {
 		priv_set_errv("malloc: %s,", strerrno());
 		return NULL;
 	}
@@ -506,7 +501,7 @@ static struct mscp_thread *mscp_copy_thread_spawn(struct mscp *m, int id)
 	t->m = m;
 	t->id = id;
 	if (m->cores == NULL)
-		t->cpu = -1;	/* not pinned to cpu */
+		t->cpu = -1; /* not pinned to cpu */
 	else
 		t->cpu = m->cores[id % m->nr_cores];
 
@@ -520,7 +515,6 @@ static struct mscp_thread *mscp_copy_thread_spawn(struct mscp *m, int id)
 	return t;
 }
 
-
 int mscp_start(struct mscp *m)
 {
 	struct mscp_thread *t;
@@ -528,7 +522,8 @@ int mscp_start(struct mscp *m)
 
 	if ((n = chunk_pool_size(&m->cp)) < m->opts->nr_threads) {
 		pr_notice("we have only %d chunk(s). "
-			   "set number of connections to %d", n, n);
+			  "set number of connections to %d",
+			  n, n);
 		m->opts->nr_threads = n;
 	}
 
@@ -541,7 +536,7 @@ int mscp_start(struct mscp *m)
 		RWLOCK_WRITE_ACQUIRE(&m->thread_rwlock);
 		list_add_tail(&t->list, &m->thread_list);
 		RWLOCK_RELEASE();
-        }
+	}
 
 	return n;
 }
@@ -556,7 +551,7 @@ int mscp_join(struct mscp *m)
 	/* waiting for scan thread joins... */
 	ret = mscp_scan_join(m);
 
-        /* waiting for copy threads join... */
+	/* waiting for copy threads join... */
 	RWLOCK_READ_ACQUIRE(&m->thread_rwlock);
 	list_for_each_entry(t, &m->thread_list, list) {
 		pthread_join(t->tid, NULL);
@@ -570,8 +565,8 @@ int mscp_join(struct mscp *m)
 	}
 	RWLOCK_RELEASE();
 
-        if (m->first) {
-                ssh_sftp_close(m->first);
+	if (m->first) {
+		ssh_sftp_close(m->first);
 		m->first = NULL;
 	}
 
@@ -583,8 +578,8 @@ int mscp_join(struct mscp *m)
 		}
 	}
 
-	pr_notice("%lu/%lu bytes copied for %lu/%lu files",
-		   done, m->total_bytes, nr_copied, nr_tobe_copied);
+	pr_notice("%lu/%lu bytes copied for %lu/%lu files", done, m->total_bytes,
+		  nr_copied, nr_tobe_copied);
 
 	return ret;
 }
@@ -608,8 +603,8 @@ static void wait_for_interval(int interval)
 
 static void mscp_copy_thread_cleanup(void *arg)
 {
-        struct mscp_thread *t = arg;
-        t->finished = true;
+	struct mscp_thread *t = arg;
+	t->finished = true;
 }
 
 void *mscp_copy_thread(void *arg)
@@ -620,12 +615,12 @@ void *mscp_copy_thread(void *arg)
 	struct chunk *c;
 	bool nomore;
 
-        pthread_cleanup_push(mscp_copy_thread_cleanup, t);
+	pthread_cleanup_push(mscp_copy_thread_cleanup, t);
 
-        if (t->cpu > -1) {
-                if (set_thread_affinity(pthread_self(), t->cpu) < 0)
+	if (t->cpu > -1) {
+		if (set_thread_affinity(pthread_self(), t->cpu) < 0)
 			goto err_out;
-        }
+	}
 
 	if (sem_wait(m->sem) < 0) {
 		pr_err("sem_wait: %s", strerrno());
@@ -654,42 +649,42 @@ void *mscp_copy_thread(void *arg)
 		goto err_out;
 	}
 
-        switch (m->direction) {
-        case MSCP_DIRECTION_L2R:
-                src_sftp = NULL;
-                dst_sftp = t->sftp;
-                break;
-        case MSCP_DIRECTION_R2L:
-                src_sftp = t->sftp;
-                dst_sftp = NULL;
-                break;
-        default:
-                return NULL; /* not reached */
-        }
-
-        while (1) {
-                c = chunk_pool_pop(&m->cp);
+	switch (m->direction) {
+	case MSCP_DIRECTION_L2R:
+		src_sftp = NULL;
+		dst_sftp = t->sftp;
+		break;
+	case MSCP_DIRECTION_R2L:
+		src_sftp = t->sftp;
+		dst_sftp = NULL;
+		break;
+	default:
+		return NULL; /* not reached */
+	}
+
+	while (1) {
+		c = chunk_pool_pop(&m->cp);
 		if (c == CHUNK_POP_WAIT) {
 			usleep(100); /* XXX: hard code */
 			continue;
 		}
 
-                if (!c)
-                        break; /* no more chunks */
+		if (!c)
+			break; /* no more chunks */
 
-		if ((t->ret = copy_chunk(c, src_sftp, dst_sftp,
-					 m->opts->nr_ahead, m->opts->buf_sz,
-					 m->opts->preserve_ts, &t->done)) < 0)
+		if ((t->ret = copy_chunk(c, src_sftp, dst_sftp, m->opts->nr_ahead,
+					 m->opts->buf_sz, m->opts->preserve_ts,
+					 &t->done)) < 0)
 			break;
-        }
+	}
 
-        pthread_cleanup_pop(1);
+	pthread_cleanup_pop(1);
 
-        if (t->ret < 0)
-		pr_err("thread:%d copy failed: %s 0x%010lx-0x%010lx",
-		       t->id, c->p->path, c->off, c->off + c->len);
+	if (t->ret < 0)
+		pr_err("thread:%d copy failed: %s 0x%010lx-0x%010lx", t->id, c->p->path,
+		       c->off, c->off + c->len);
 
-        return NULL;
+	return NULL;
 
 err_out:
 	t->finished = true;
@@ -701,7 +696,6 @@ out:
 	return NULL;
 }
 
-
 /* cleanup-related functions */
 
 static void list_free_src(struct list_head *list)
@@ -728,8 +722,8 @@ static void list_free_thread(struct list_head *list)
 
 void mscp_cleanup(struct mscp *m)
 {
-        if (m->first) {
-                ssh_sftp_close(m->first);
+	if (m->first) {
+		ssh_sftp_close(m->first);
 		m->first = NULL;
 	}
 
@@ -778,4 +772,3 @@ void mscp_get_stats(struct mscp *m, struct mscp_stats *s)
 
 	s->finished = nr_threads > 0 ? (nr_finished == nr_threads) : false;
 }
-